WO2020003557A1 - プラズマ処理装置、プラズマ処理方法、プログラムおよびメモリ媒体 - Google Patents
プラズマ処理装置、プラズマ処理方法、プログラムおよびメモリ媒体 Download PDFInfo
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32174—Circuits specially adapted for controlling the RF discharge
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3464—Sputtering using more than one target
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01J37/32174—Circuits specially adapted for controlling the RF discharge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H01J37/32—Gas-filled discharge tubes
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3402—Gas-filled discharge tubes operating with cathodic sputtering using supplementary magnetic fields
- H01J37/3405—Magnetron sputtering
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- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H2242/00—Auxiliary systems
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Definitions
- the present invention relates to a plasma processing apparatus, a plasma processing method, a program, and a memory medium.
- Patent Document 1 discloses a high-frequency transformer (Tr7), a matching box (MB7), a vacuum vessel (10), a first target (T5), a second target (T6), and a high-frequency voltage generator (A sputtering apparatus including an OSC5), a voltage amplifier (PA5), a substrate holder (21), and a motor (22) is described.
- the voltages of the two targets (T5, T6) are determined by plasma generation conditions and the like, and are unadjustable parameters.
- the present invention has been made based on the recognition of the above problems, and provides an advantageous technique for adjusting the voltages of two electrodes for generating plasma.
- a first aspect of the present invention relates to a plasma processing apparatus, wherein the plasma processing apparatus includes an impedance matching circuit, a first unbalanced terminal connected to the impedance matching circuit, a second unbalanced terminal grounded, A balun having a first balanced terminal and a second balanced terminal, a vacuum vessel grounded, a first electrode electrically connected to the first balanced terminal, and a second electrode electrically connected to the second balanced terminal; A second electrode; an adjusting reactance that affects a relationship between a first voltage applied to the first electrode and a second voltage applied to the second electrode; and the first unbalance via the impedance matching circuit.
- a high-frequency power supply for generating a high-frequency power supplied between a terminal and the second unbalanced terminal It comprises a part, a.
- a second aspect of the present invention relates to a plasma processing method for processing a substrate in a plasma processing apparatus, the plasma processing apparatus comprising: an impedance matching circuit; a first unbalanced terminal connected to the impedance matching circuit; A balun having a second unbalanced terminal, a first balanced terminal, and a second balanced terminal, a grounded vacuum vessel, a first electrode electrically connected to the first balanced terminal, and a second balanced terminal. A second electrode electrically connected to the first electrode, an adjustment reactance that affects a relationship between a first voltage applied to the first electrode and a second voltage applied to the second electrode, and the impedance matching circuit.
- a third aspect of the present invention relates to a plasma processing apparatus, wherein the plasma processing apparatus includes an impedance matching circuit, a first unbalanced terminal connected to the impedance matching circuit, a second unbalanced terminal grounded, A balun having a first balanced terminal and a second balanced terminal, a vacuum vessel grounded, a first electrode electrically connected to the first balanced terminal, and a second electrode electrically connected to the second balanced terminal; A second electrode; an adjusting reactance that affects a relationship between a first voltage applied to the first electrode and a second voltage applied to the second electrode; and the first unbalance via the impedance matching circuit.
- a high-frequency power supply for generating a high-frequency power supplied between a terminal and the second unbalanced terminal; and a measuring unit for measuring the voltage of the first electrode and the voltage of the second electrode. Before measured In accordance with the voltage of the voltage of the first electrode and the second electrode, the reactance of the adjusting reactance is adjusted.
- FIG. 1 is a diagram schematically illustrating a configuration of a plasma processing apparatus 1 according to a first embodiment of the present invention.
- the figure which shows the example of a structure of a balun.
- the figure which shows the other example of a structure of a balun.
- FIG. 4 is a diagram illustrating functions of a balun 103.
- the figure which shows the result of having simulated the plasma potential and the cathode potential in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and the cathode potential in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and the cathode potential in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and the cathode potential in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and two cathode potentials in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and two cathode potentials in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and two cathode potentials in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- the figure which shows the result of having simulated the plasma potential and two cathode potentials in the case of 1.5 ⁇ X / Rp ⁇ 5000.
- FIG. 27 is a flowchart illustrating the operation of the plasma processing apparatus 1 according to the twenty-third embodiment of the present invention.
- substrate when the frequency of the high frequency which a high frequency power supply generates is set to 12.56 MHz.
- FIG. 1 schematically shows a configuration of a plasma processing apparatus 1 according to the first embodiment of the present invention.
- the plasma processing apparatus according to the first embodiment can operate as a sputtering apparatus that forms a film on the substrate 112 by sputtering.
- the plasma processing apparatus 1 includes a balun (balance-unbalance conversion circuit) 103, a vacuum vessel 110, a first electrode 106, and a second electrode 111.
- the plasma processing apparatus 1 includes the balun 103 and the main body 10
- the main body 10 includes the vacuum vessel 110, the first electrode 106, and the second electrode 111.
- the main body 10 has a first terminal 251 and a second terminal 252.
- the first electrode 106 may be arranged so as to cooperate with the vacuum vessel 110 to separate the vacuum space and the external space (that is, to constitute a part of a vacuum partition), It may be arranged inside.
- the second electrode 111 may be arranged so as to cooperate with the vacuum chamber 110 to separate the vacuum space and the external space (that is, to form a part of a vacuum partition), It may be arranged inside.
- the balun 103 has a first unbalanced terminal 201, a second unbalanced terminal 202, a first balanced terminal 211, and a second balanced terminal 212.
- An unbalanced circuit is connected to the first unbalanced terminal 201 and the second unbalanced terminal 202 of the balun 103, and a balanced circuit is connected to the first balanced terminal 211 and the second balanced terminal 212 of the balun 103.
- the vacuum vessel 110 is made of a conductor and is grounded.
- the first electrode 106 is a cathode and holds the target 109.
- the target 109 can be, for example, an insulator material or a conductor material.
- the second electrode 111 is an anode and holds the substrate 112.
- the plasma processing apparatus 1 of the first embodiment can operate as a sputtering apparatus that forms a film on the substrate 112 by sputtering the target 109.
- the first electrode 106 is electrically connected to a first balanced terminal 211
- the second electrode 111 is electrically connected to a second balanced terminal 212.
- the fact that the first electrode 106 and the first balanced terminal 211 are electrically connected means that the current flows between the first electrode 106 and the first balanced terminal 211.
- a current path is formed between the current path 211 and the current path 211.
- “a and b are electrically connected” means that a current path is configured between a and b so that a current flows between a and b. means.
- the first electrode 106 is electrically connected to the first terminal 251
- the second electrode 111 is electrically connected to the second terminal 252
- the first terminal 251 is electrically connected to the first balanced terminal 211.
- the second terminal 252 is electrically connected to the second balanced terminal 212.
- the first electrode 106 and the first balanced terminal 211 are electrically connected via the blocking capacitor 104.
- the blocking capacitor 104 blocks DC current between the first balanced terminal 211 and the first electrode 106 (or between the first balanced terminal 211 and the second balanced terminal 212).
- an impedance matching circuit 102 described later may be configured to cut off a DC current flowing between the first unbalanced terminal 201 and the second unbalanced terminal 202.
- the first electrode 106 can be supported by the vacuum vessel 110 via the insulator 107.
- the second electrode 111 can be supported by the vacuum container 110 via the insulator 108.
- the insulator 108 may be disposed between the second electrode 111 and the vacuum container 110.
- the plasma processing apparatus 1 may further include a high-frequency power supply 101 and an impedance matching circuit 102 disposed between the high-frequency power supply 101 and the balun 103.
- the high frequency power supply 101 supplies a high frequency (high frequency current, high frequency voltage, high frequency power) between the first unbalanced terminal 201 and the second unbalanced terminal 202 of the balun 103 via the impedance matching circuit 102.
- the high frequency power supply 101 supplies a high frequency (high frequency current, high frequency voltage, high frequency power) between the first electrode 106 and the second electrode 111 via the impedance matching circuit 102, the balun 103, and the blocking capacitor 104.
- the high-frequency power supply 101 may be understood as supplying high frequency between the first terminal 251 and the second terminal 252 of the main body 10 via the impedance matching circuit 102 and the balun 103.
- a gas for example, Ar, Kr or Xe gas
- Ar, Kr or Xe gas is supplied to the internal space of the vacuum vessel 110 through a gas supply unit (not shown) provided in the vacuum vessel 110.
- a high frequency is supplied between the first electrode 106 and the second electrode 111 by the high frequency power supply 101 via the impedance matching circuit 102, the balun 103, and the blocking capacitor 104.
- plasma is generated between the first electrode 106 and the second electrode 111, a self-bias voltage is generated on the surface of the target 109, and ions in the plasma collide with the surface of the target 109, and are deflected from the target 109.
- the particles of the material comprising are released. Then, a film is formed on the substrate 112 by the particles.
- FIG. 2A shows an example of the configuration of the balun 103.
- the balun 103 illustrated in FIG. 2A includes a first coil 221 that connects the first unbalanced terminal 201 and the first balanced terminal 211, and a second coil 221 that connects the second unbalanced terminal 202 and the second balanced terminal 212. And a coil 222.
- the first coil 221 and the second coil 222 are coils having the same number of turns and share an iron core.
- FIG. 2B shows another configuration example of the balun 103.
- the balun 103 shown in FIG. 2B includes a first coil 221 that connects the first unbalanced terminal 201 and the first balanced terminal 211, and a second coil that connects the second unbalanced terminal 202 and the second balanced terminal 212. And a coil 222.
- the first coil 221 and the second coil 222 are coils having the same number of turns and share an iron core.
- the balun 103 illustrated in FIG. 2B further includes a third coil 223 and a fourth coil 224 connected between the first balanced terminal 211 and the second balanced terminal 212.
- the four coil 224 is configured so that the voltage at the connection node 213 between the third coil 223 and the fourth coil 224 is the midpoint between the voltage at the first balanced terminal 211 and the voltage at the second balanced terminal 212.
- the third coil 223 and the fourth coil 224 are coils having the same number of turns and share an iron core.
- the connection node 213 may be grounded, may be connected to the vacuum vessel 110, or may be floating.
- the function of the balun 103 will be described with reference to FIG.
- the current flowing through the first unbalanced terminal 201 is denoted by I1
- the current flowing through the first balanced terminal 211 is denoted by I2
- the current flowing through the second unbalanced terminal 202 is denoted by I2 '
- the current I2 flowing through the ground is denoted by I3.
- I3 0, that is, when no current flows to the ground on the side of the balanced circuit, the isolation performance of the balanced circuit with respect to the ground is the best.
- the index ISO indicating the degree of the isolation performance can be given by the following equation. Under this definition, the larger the absolute value of the ISO value, the better the isolation performance.
- Rp-jXp indicates the first electrode 106 and the second electrode 111 (from the side of the first balanced terminal 211 and the second balanced terminal 212 while plasma is generated in the internal space of the vacuum vessel 110.
- the figure shows the impedance (including the reactance of the blocking capacitor 104) when looking at the main body 10 side.
- Rp indicates a resistance component
- -Xp indicates a reactance component.
- X indicates a reactance component (inductance component) of the impedance of the first coil 221 of the balun 103.
- ISO has a correlation to X / Rp.
- the present inventor has a configuration in which high frequency is supplied between the first electrode 106 and the second electrode 111 from the high frequency power supply 101 via the balun 103, and in particular, the configuration satisfies 1.5 ⁇ X / Rp ⁇ 5000.
- Is to make the potential (plasma potential) of the plasma formed in the internal space of the vacuum vessel 110 (the space between the first electrode 106 and the second electrode 111) insensitive to the state of the inner surface of the vacuum vessel 110. was found to be advantageous.
- the fact that the plasma potential becomes insensitive to the state of the inner surface of the vacuum vessel 110 means that the plasma potential can be stabilized even when the plasma processing apparatus 1 is used for a long period of time.
- 1.5 ⁇ X / Rp ⁇ 5000 corresponds to ⁇ 10.0 dB ⁇ ISO ⁇ ⁇ 80 dB.
- FIGS. 5A to 5D show the results of simulating the plasma potential and the potential (cathode potential) of the first electrode 106 when 1.5 ⁇ X / Rp ⁇ 5000 is satisfied.
- FIG. 5A shows the plasma potential and the cathode potential when no film is formed on the inner surface of the vacuum vessel 110.
- FIG. 5B shows the plasma potential and the cathode potential when a resistive film (1000 ⁇ ) is formed on the inner surface of the vacuum vessel 110.
- FIG. 5C shows the plasma potential and the cathode potential when an inductive film (0.6 ⁇ H) is formed on the inner surface of the vacuum vessel 110.
- 5D shows the plasma potential and the cathode potential when a capacitive film (0.1 nF) is formed on the inner surface of the vacuum vessel 110.
- 5A to 5D it is understood that satisfying 1.5 ⁇ X / Rp ⁇ 5000 is advantageous for stabilizing the plasma potential of the inner surface of the vacuum vessel 110 in various states.
- FIG. 6A to 6D show the results of simulation of the plasma potential and the potential (cathode potential) of the first electrode 106 when 1.5 ⁇ X / Rp ⁇ 5000 is not satisfied.
- FIG. 6A shows the plasma potential and the cathode potential when no film is formed on the inner surface of the vacuum vessel 110.
- FIG. 6B shows the plasma potential and the cathode potential when a resistive film (1000 ⁇ ) is formed on the inner surface of the vacuum vessel 110.
- FIG. 6C shows the plasma potential and the cathode potential when an inductive film (0.6 ⁇ H) is formed on the inner surface of the vacuum vessel 110.
- 6D shows the plasma potential and the cathode potential when a capacitive film (0.1 nF) is formed on the inner surface of the vacuum vessel 110.
- a capacitive film 0.1 nF
- the plasma potential is likely to change depending on the state of the inner surface of the vacuum vessel 110.
- X / Rp> 5000 a discharge occurs only between the first electrode 106 and the second electrode 111 when no film is formed on the inner surface of the vacuum vessel 110.
- X / Rp> 5000 when a film starts to form on the inner surface of the vacuum vessel 110, the plasma potential reacts sensitively to the film, resulting in the results illustrated in FIGS. 6A to 6D.
- the balun 103 is removed from the plasma processing apparatus 1, and the output terminal 230 of the impedance matching circuit 102 is connected to the first terminal 251 (blocking capacitor 104) of the main body 10. Also, the second terminal 252 (second electrode 111) of the main body 10 is grounded. In this state, high frequency is supplied from the high frequency power supply 101 to the first terminal 251 of the main body 10 through the impedance matching circuit 102.
- the impedance matching circuit 102 is equivalently constituted by coils L1 and L2 and variable capacitors VC1 and VC2.
- Plasma can be generated by adjusting the capacitance values of the variable capacitors VC1 and VC2.
- the impedance of the impedance matching circuit 102 matches the impedance Rp-jXp of the main body 10 (the first electrode 106 and the second electrode 111) when the plasma is generated. .
- the impedance of the impedance matching circuit 102 is Rp + jXp.
- Rp + jXp of the impedance matching circuit 102 when the impedance is matched it is possible to obtain Rp ⁇ jXp (only Rp that is actually wanted to know).
- Rp-jXp can also be obtained by simulation, for example, based on design data.
- X X / Rp can be specified based on Rp thus obtained.
- the reactance component (inductance component) X of the impedance of the first coil 221 of the balun 103 can be determined based on Rp so as to satisfy 1.5 ⁇ X / Rp ⁇ 5000.
- FIG. 8 schematically shows the configuration of a plasma processing apparatus 1 according to the second embodiment of the present invention.
- the plasma processing apparatus 1 of the second embodiment can operate as an etching apparatus for etching the substrate 112.
- the first electrode 106 is a cathode and holds the substrate 112.
- the second electrode 111 is an anode.
- the first electrode 106 and the first balanced terminal 211 are electrically connected via the blocking capacitor 104.
- the blocking capacitor 104 is disposed in an electrical connection path between the first electrode 106 and the first balanced terminal 211.
- FIG. 9 schematically shows a configuration of a plasma processing apparatus 1 according to a third embodiment of the present invention.
- the plasma processing apparatus 1 according to the third embodiment is a modification of the plasma processing apparatus 1 according to the first embodiment, and further includes at least one of a mechanism for moving the second electrode 111 up and down and a mechanism for rotating the second electrode 111.
- the plasma processing apparatus 1 includes a drive mechanism 114 including both a mechanism for moving the second electrode 111 up and down and a mechanism for rotating the second electrode 111.
- a bellows 113 constituting a vacuum partition may be provided between the vacuum vessel 110 and the driving mechanism 114.
- the plasma processing apparatus 1 may further include at least one of a mechanism for moving the first electrode 106 up and down and a mechanism for rotating the second electrode 106.
- FIG. 10 schematically shows a configuration of a plasma processing apparatus 1 according to a fourth embodiment of the present invention.
- the plasma processing apparatus according to the fourth embodiment can operate as a sputtering apparatus that forms a film on the substrate 112 by sputtering. Items not mentioned as the plasma processing apparatus 1 of the fourth embodiment can follow the first to third embodiments.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, a vacuum vessel 110, a first electrode 106 and a second electrode 135 forming a first set, and a first electrode 141 forming a second set. And a second electrode 145.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, and a main body 10, and the main body 10 includes the vacuum vessel 110, the first electrode 106 and the second electrode 135 forming a first set. And a first electrode 141 and a second electrode 145 that constitute a second set.
- the main body 10 has a first terminal 251, a second terminal 252, a third terminal 451, and a fourth terminal 452.
- the first balun 103 has a first unbalanced terminal 201, a second unbalanced terminal 202, a first balanced terminal 211, and a second balanced terminal 212.
- An unbalanced circuit is connected to the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103, and the unbalanced circuit is connected to the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103.
- a balancing circuit is connected.
- the second balun 303 can have the same configuration as the first balun 103.
- the second balun 303 has a first unbalanced terminal 401, a second unbalanced terminal 402, a first balanced terminal 411, and a second balanced terminal 412.
- An unbalanced circuit is connected to the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303, and the unbalanced circuit is connected to the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303. , A balancing circuit is connected.
- the vacuum vessel 110 is grounded.
- the first set of first electrodes 106 holds the target 109.
- the target 109 can be, for example, an insulator material or a conductor material.
- the first set of second electrodes 135 is disposed around the first electrode 106.
- the first set of first electrodes 106 is electrically connected to the first balanced terminal 211 of the first balun 103, and the first set of second electrodes 135 is electrically connected to the second balanced terminal 212 of the first balun 103. It is connected to the.
- the second set of first electrodes 141 holds the substrate 112.
- the second set of second electrodes 145 is arranged around the first electrode 141.
- the second set of first electrodes 141 is electrically connected to the first balanced terminal 411 of the second balun 303, and the second set of second electrodes 145 is electrically connected to the second balanced terminal 412 of the second balun 303. It is connected to the.
- the first set of first electrodes 106 is electrically connected to the first terminal 251
- the first set of second electrodes 135 is electrically connected to the second terminal 252
- the first terminal 251 is It can be understood that the second terminal 252 is electrically connected to the first balanced terminal 211 of the first balun 103 and the second terminal 252 is electrically connected to the second balanced terminal 212 of the first balun 103.
- the second set of first electrodes 141 is electrically connected to the third terminals 451
- the second set of second electrodes 145 is electrically connected to the fourth terminals 452
- the third terminals 451 can be understood as being electrically connected to the first balanced terminal 411 of the second balun 303, and the fourth terminal 452 being electrically connected to the second balanced terminal 412 of the second balun 303.
- the first pair of first electrodes 106 and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected via the blocking capacitor 104.
- the blocking capacitor 104 is between the first balanced terminal 211 of the first balun 103 and the first set of first electrodes 106 (or between the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103).
- the first impedance matching circuit 102 may be configured to block a DC current flowing between the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103. Good.
- the first set of the first electrode 106 and the second electrode 135 may be supported by the vacuum vessel 110 via the insulator 132.
- the second pair of first electrodes 141 and the first balanced terminal 411 (third terminal 451) of the second balun 303 can be electrically connected via the blocking capacitor 304.
- the blocking capacitor 304 is between the first balanced terminal 411 of the second balun 303 and the second set of first electrodes 141 (or between the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303).
- the second impedance matching circuit 302 may be configured to block a DC current flowing between the first unbalanced terminal 201 and the second unbalanced terminal 202 of the second balun 303. Good.
- the second set of the first electrode 141 and the second electrode 145 may be supported by the vacuum vessel 110 via the insulator 142.
- the plasma processing apparatus 1 can include a first high-frequency power supply 101 and a first impedance matching circuit 102 disposed between the first high-frequency power supply 101 and the first balun 103.
- the first high frequency power supply 101 supplies a high frequency between the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103 via the first impedance matching circuit 102.
- the first high frequency power supply 101 supplies a high frequency between the first electrode 106 and the second electrode 135 via the first impedance matching circuit 102, the first balun 103, and the blocking capacitor 104.
- the first high frequency power supply 101 supplies a high frequency between the first terminal 251 and the second terminal 252 of the main body 10 via the first impedance matching circuit 102 and the first balun 103.
- the first balun 103 and the first set of the first electrode 106 and the second electrode 135 constitute a first high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- the plasma processing apparatus 1 may include a second high-frequency power supply 301 and a second impedance matching circuit 302 disposed between the second high-frequency power supply 301 and the second balun 303.
- the second high frequency power supply 301 supplies a high frequency between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303 via the second impedance matching circuit 302.
- the second high frequency power supply 301 supplies a high frequency between the first electrode 141 and the second electrode 145 of the second set via the second impedance matching circuit 302, the second balun 303, and the blocking capacitor 304. .
- the second high frequency power supply 301 supplies a high frequency between the third terminal 451 and the fourth terminal 452 of the main body 10 via the second impedance matching circuit 302 and the second balun 303.
- the second balun 303 and the second set of the first electrode 141 and the second electrode 145 constitute a second high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- the first set of first The impedance when viewing the first electrode 106 and the second electrode 135 side (the side of the main body 10) is represented by Rp1-jXp1.
- the reactance component (inductance component) of the impedance of the first coil 221 of the first balun 103 is defined as X1.
- satisfying 1.5 ⁇ X1 / Rp1 ⁇ 5000 is advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- the second pair of the second balun 303 from the side of the first balanced terminal 411 and the second balanced terminal 412 is formed.
- the impedance when viewing the first electrode 141 and the second electrode 145 (the side of the main body 10) is Rp2-jXp2.
- the reactance component (inductance component) of the impedance of the first coil 221 of the second balun 303 is defined as X2. In this definition, satisfying 1.5 ⁇ X2 / Rp2 ⁇ 5000 is advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- FIG. 11 schematically shows a configuration of a plasma processing apparatus 1 according to a fifth embodiment of the present invention.
- the apparatus 1 of the fifth embodiment has a configuration in which driving mechanisms 114 and 314 are added to the plasma processing apparatus 1 of the fourth embodiment.
- the drive mechanism 114 can include at least one of a mechanism for moving the first electrode 141 up and down and a mechanism for rotating the first electrode 141.
- the driving mechanism 314 may include a mechanism for moving the second electrode 145 up and down.
- FIG. 12 schematically shows a configuration of a plasma processing apparatus 1 according to a sixth embodiment of the present invention.
- the plasma processing apparatus of the sixth embodiment can operate as a sputtering apparatus for forming a film on the substrate 112 by sputtering. Items not mentioned in the sixth embodiment can follow the first to fifth embodiments.
- the plasma processing apparatus 1 according to the sixth embodiment includes a plurality of first high-frequency supply units and at least one second high-frequency supply unit.
- One of the plurality of first high-frequency supply units may include a first electrode 106a, a second electrode 135a, and a first balun 103a.
- Another one of the plurality of first high-frequency supply units may include a first electrode 106b, a second electrode 135b, and a first balun 103b.
- a first electrode 106b may include a first electrode 106b, a second electrode 135b, and a first balun 103b.
- the plurality of first high-frequency supply units are configured by two high-frequency supply units.
- the two high-frequency supply units and components related thereto are distinguished from each other by subscripts a and b.
- the two targets are distinguished from each other by subscripts a and b.
- the plasma processing apparatus 1 includes a plurality of first baluns 103a and 103b, a second balun 303, a vacuum vessel 110, a first electrode 106a and a second electrode 135a, a first electrode 106b and a second An electrode 135b, a first electrode 141 and a second electrode 145 are provided.
- the plasma processing apparatus 1 includes a plurality of first baluns 103a and 103b, a second balun 303, and a main body 10, and the main body 10 includes a vacuum vessel 110, a first electrode 106a and a second electrode 135a, It may be understood as including the first electrode 106b and the second electrode 135b, and the first electrode 141 and the second electrode 145.
- the main body 10 has first terminals 251a and 251b, second terminals 252a and 252b, a third terminal 451, and a fourth terminal 452.
- the first balun 103a has a first unbalanced terminal 201a, a second unbalanced terminal 202a, a first balanced terminal 211a, and a second balanced terminal 212a.
- An unbalanced circuit is connected to the first unbalanced terminal 201a and the second unbalanced terminal 202a of the first balun 103a, and the unbalanced circuit is connected to the first balanced terminal 211a and the second balanced terminal 212a of the first balun 103a.
- a balancing circuit is connected.
- the first balun 103b has a first unbalanced terminal 201b, a second unbalanced terminal 202b, a first balanced terminal 211b, and a second balanced terminal 212b.
- An unbalanced circuit is connected to the first unbalanced terminal 201b and the second unbalanced terminal 202b of the first balun 103b, and the unbalanced circuit is connected to the first balanced terminal 211b and the second balanced terminal 212b of the first balun 103b. , A balancing circuit is connected.
- the second balun 303 can have the same configuration as the first baluns 103a and 103b.
- the second balun 303 has a first unbalanced terminal 401, a second unbalanced terminal 402, a first balanced terminal 411, and a second balanced terminal 412.
- An unbalanced circuit is connected to the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303, and the unbalanced circuit is connected to the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303.
- a balancing circuit is connected.
- the vacuum vessel 110 is grounded.
- the first electrodes 106a and 106b hold targets 109a and 109b, respectively.
- the targets 109a, 109b can be, for example, an insulator material or a conductor material.
- the second electrodes 135a and 135b are arranged around the first electrodes 106a and 106b, respectively.
- the first electrodes 106a and 106b are electrically connected to the first balanced terminals 211a and 211b of the first baluns 103a and 103b, respectively, and the second electrodes 135a and 135b are respectively connected to the second balanced terminals of the first baluns 103a and 103b. It is electrically connected to 212a and 212b.
- the first electrode 141 holds the substrate 112.
- the second electrode 145 is arranged around the first electrode 141.
- the first electrode 141 is electrically connected to the first balanced terminal 411 of the second balun 303, and the second electrode 145 is electrically connected to the second balanced terminal 412 of the second balun 303.
- the first electrodes 106a and 106b are electrically connected to the first terminals 251a and 251b, respectively, and the second electrodes 135a and 135b are electrically connected to the second terminals 252a and 252b, respectively.
- 251a and 251b are electrically connected to the first balanced terminals 211a and 111b of the first baluns 103a and 103b, respectively, and the second terminals 252a and 252b are electrically connected to the second balanced terminals 212a and 212b of the first baluns 103a and 103b, respectively. It can be understood as a configuration that is physically connected.
- the first electrode 141 is electrically connected to the third terminal 451
- the second electrode 145 is electrically connected to the fourth terminal 452
- the third terminal 451 is connected to the second terminal of the second balun 303.
- the fourth terminal 452 is electrically connected to the first balanced terminal 411 and the fourth terminal 452 is electrically connected to the second balanced terminal 412 of the second balun 303.
- the first electrodes 106a and 106b and the first balanced terminals 211a and 211b (first terminals 251a and 251b) of the first baluns 103a and 103b can be electrically connected through the blocking capacitors 104a and 104b, respectively.
- the blocking capacitors 104a and 104b are connected between the first balanced terminals 211a and 211b of the first baluns 103a and 103b and the first electrodes 106a and 106b (or the first balanced terminals 211a and 211b of the first baluns 103a and 103b and (Between the two balanced terminals 212a and 212b).
- the first impedance matching circuits 102a and 102b are connected to the DC current flowing between the first unbalanced terminals 201a and 201b and the second unbalanced terminals 202a and 202b of the first baluns 103a and 103b. It may be configured to interrupt the current.
- the blocking capacitors 104a and 104b may be arranged between the second electrodes 135a and 135b and the second balanced terminals 212a and 212b (second terminals 252a and 252b) of the first baluns 103a and 103b.
- the first electrodes 106a and 106b and the second electrodes 135a and 135b can be supported by the vacuum vessel 110 via insulators 132a and 132b, respectively.
- the first electrode 141 and the first balanced terminal 411 (third terminal 451) of the second balun 303 can be electrically connected via the blocking capacitor 304.
- the blocking capacitor 304 supplies a DC current between the first balanced terminal 411 of the second balun 303 and the first electrode 141 (or between the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303). Cut off.
- the second impedance matching circuit 302 may be configured to block a DC current flowing between the first unbalanced terminal 201 and the second unbalanced terminal 202 of the second balun 303. Good.
- the blocking capacitor 304 may be arranged between the second electrode 145 and the second balanced terminal 412 (the fourth terminal 452) of the second balun 303.
- the first electrode 141 and the second electrode 145 may be supported by the vacuum container 110 via the insulator 142.
- the plasma processing apparatus 1 includes a plurality of first high-frequency power supplies 101a and 101b, and a first impedance matching circuit 102a disposed between the plurality of first high-frequency power supplies 101a and 101b and the plurality of first baluns 103a and 103b. 102b.
- the first high-frequency power supplies 101a and 101b are connected between the first unbalanced terminals 201a and 201b and the second unbalanced terminals 202a and 202b of the first baluns 103a and 103b via the first impedance matching circuits 102a and 102b, respectively. Supply.
- the first high-frequency power supplies 101a and 101b are connected to the first electrodes 106a and 106b and the second electrodes 135a via the first impedance matching circuits 102a and 102b, the first baluns 103a and 103b, and the blocking capacitors 104a and 104b, respectively. 135b.
- the first high-frequency power supplies 101a and 101b are connected between the first terminals 251a and 251b and the second terminals 252a and 252b of the main body 10 via the first impedance matching circuits 102a and 102b and the first baluns 103a and 103b. Supply high frequency.
- the plasma processing apparatus 1 may include a second high-frequency power supply 301 and a second impedance matching circuit 302 disposed between the second high-frequency power supply 301 and the second balun 303.
- the second high frequency power supply 301 supplies a high frequency between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303 via the second impedance matching circuit 302.
- the second high frequency power supply 301 supplies a high frequency between the first electrode 141 and the second electrode 145 via the second impedance matching circuit 302, the second balun 303, and the blocking capacitor 304.
- the second high frequency power supply 301 supplies a high frequency between the third terminal 451 and the fourth terminal 452 of the main body 10 via the second impedance matching circuit 302 and the second balun 303.
- FIG. 13 schematically illustrates a configuration of a plasma processing apparatus 1 according to a seventh embodiment of the present invention.
- the plasma processing apparatus of the seventh embodiment can operate as a sputtering apparatus for forming a film on the substrate 112 by sputtering. Items not mentioned as the plasma processing apparatus 1 of the seventh embodiment can follow the first to sixth embodiments.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, a vacuum vessel 110, a first electrode 105a and a second electrode 105b forming a first set, and a first electrode 141 forming a second set. And a second electrode 145.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, and a main body 10, and the main body 10 includes a vacuum vessel 110, and a first electrode 105a and a second electrode 105b forming a first set. And a first electrode 141 and a second electrode 145 that constitute a second set.
- the main body 10 has a first terminal 251, a second terminal 252, a third terminal 451, and a fourth terminal 452.
- the first balun 103 has a first unbalanced terminal 201, a second unbalanced terminal 202, a first balanced terminal 211, and a second balanced terminal 212.
- An unbalanced circuit is connected to the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103, and the unbalanced circuit is connected to the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103.
- a balancing circuit is connected.
- the second balun 303 can have the same configuration as the first balun 103.
- the second balun 303 has a first unbalanced terminal 401, a second unbalanced terminal 402, a first balanced terminal 411, and a second balanced terminal 412.
- An unbalanced circuit is connected to the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303, and the unbalanced circuit is connected to the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303. , A balancing circuit is connected.
- the vacuum vessel 110 is grounded.
- the first set of first electrodes 105a holds the first target 109a and faces the space on the substrate 112 side via the first target 109a.
- the first set of second electrodes 105b is arranged next to the first electrodes 105a, holds the second target 109b, and faces the space on the substrate 112 side via the second target 109b.
- Targets 109a and 109b can be, for example, an insulator material or a conductor material.
- the first set of first electrodes 105a is electrically connected to the first balanced terminal 211 of the first balun 103
- the first set of second electrodes 105b is electrically connected to the second balanced terminal 212 of the first balun 103. It is connected to the.
- the second set of first electrodes 141 holds the substrate 112.
- the second set of second electrodes 145 is arranged around the first electrode 141.
- the second set of first electrodes 141 is electrically connected to the first balanced terminal 411 of the second balun 303, and the second set of second electrodes 145 is electrically connected to the second balanced terminal 412 of the second balun 303. It is connected to the.
- the first set of first electrodes 105a is electrically connected to the first terminal 251; the first set of second electrodes 105b is electrically connected to the second terminal 252; It can be understood as a configuration in which the first balun 103 is electrically connected to the first balanced terminal 211 and the second terminal 252 is connected to the second balanced terminal 212 of the first balun 103.
- the second set of first electrodes 141 is electrically connected to the third terminal 451
- the second set of second electrodes 145 is electrically connected to the fourth terminal 452
- the third terminal 451 can be understood as being electrically connected to the first balanced terminal 411 of the second balun 303, and the fourth terminal 452 being connected to the second balanced terminal 412 of the second balun 303.
- the first pair of first electrodes 105a and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected via the blocking capacitor 104a.
- the blocking capacitor 104a is between the first balanced terminal 211 of the first balun 103 and the first set of first electrodes 105a (or between the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103). To cut off the DC current.
- the first pair of second electrodes 105b and the second balanced terminal 212 (second terminal 252) of the first balun 103 can be electrically connected via the blocking capacitor 104b.
- the blocking capacitor 104b is provided between the second balanced terminal 212 of the first balun 103 and the first set of second electrodes 105b (or between the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103). To cut off the DC current.
- the first set of the first electrode 105a and the second electrode 105b can be supported by the vacuum vessel 110 via insulators 132a and 132b, respectively.
- the second pair of first electrodes 141 and the first balanced terminal 411 (third terminal 451) of the second balun 303 can be electrically connected via the blocking capacitor 304.
- the blocking capacitor 304 is between the first balanced terminal 411 of the second balun 303 and the second set of first electrodes 141 (or between the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303).
- the second impedance matching circuit 302 may be configured to block a DC current flowing between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303. Good.
- the second pair of the first electrode 141 and the second electrode 145 can be supported by the vacuum vessel 110 via insulators 142 and 146, respectively.
- the plasma processing apparatus 1 can include a first high-frequency power supply 101 and a first impedance matching circuit 102 disposed between the first high-frequency power supply 101 and the first balun 103.
- the first high frequency power supply 101 supplies a high frequency between the first electrode 105a and the second electrode 105b via the first impedance matching circuit 102, the first balun 103, and the blocking capacitors 104a and 104b.
- the first high frequency power supply 101 supplies a high frequency between the first terminal 251 and the second terminal 252 of the main body 10 via the first impedance matching circuit 102 and the first balun 103.
- the first balun 103 and the first set of the first electrode 105a and the second electrode 105b constitute a first high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- the plasma processing apparatus 1 may include a second high-frequency power supply 301 and a second impedance matching circuit 302 disposed between the second high-frequency power supply 301 and the second balun 303.
- the second high frequency power supply 301 supplies a high frequency between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303 via the second impedance matching circuit 302.
- the second high frequency power supply 301 supplies a high frequency between the first electrode 141 and the second electrode 145 of the second set via the second impedance matching circuit 302, the second balun 303, and the blocking capacitor 304.
- the second high frequency power supply 301 supplies a high frequency between the third terminal 451 and the fourth terminal 452 of the main body 10 via the second impedance matching circuit 302 and the second balun 303.
- the second balun 303 and the second set of the first electrode 141 and the second electrode 145 constitute a second high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- a first set of first and second balanced terminals 211 and 212 of the first balun 103 are arranged from the side of the first and second balanced terminals 211 and 212.
- the impedance when viewing the side of the first electrode 105a and the second electrode 105b (the side of the main body 10) is Rp1-jXp1.
- the reactance component (inductance component) of the impedance of the first coil 221 of the first balun 103 is defined as X1. In this definition, satisfying 1.5 ⁇ X1 / Rp1 ⁇ 5000 is advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- the second pair of the second balun 303 from the side of the first balanced terminal 411 and the second balanced terminal 412 is formed.
- Rp2-jXp2 be the impedance when viewing the side of the first electrode 127 and the second electrode 130 (the side of the main body 10).
- the reactance component (inductance component) of the impedance of the first coil 221 of the second balun 303 is defined as X2. In this definition, satisfying 1.5 ⁇ X2 / Rp2 ⁇ 5000 is advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- the plasma processing apparatus 1 may further include at least one of a mechanism for raising and lowering the first electrode 141 forming the second set and a mechanism for rotating the first electrode 141 forming the second set.
- the plasma processing apparatus 1 includes a driving mechanism 114 including both a mechanism for moving the first electrode 141 up and down and a mechanism for rotating the first electrode 141.
- the plasma processing apparatus 1 includes a mechanism 314 that raises and lowers the second electrode 145 included in the second set.
- a bellows constituting a vacuum partition may be provided between the vacuum vessel 110 and the driving mechanisms 114 and 314.
- the current flowing through the first unbalanced terminal 201 is denoted by I1
- the current flowing through the first balanced terminal 211 is denoted by I2
- the current flowing through the second unbalanced terminal 202 is denoted by I2 '
- the current I2 flowing through the ground is denoted by I3.
- I3 0, that is, when no current flows to the ground on the side of the balanced circuit, the isolation performance of the balanced circuit with respect to the ground is the best.
- the isolation performance of the balanced circuit with respect to the ground is the worst.
- the index ISO indicating the degree of the isolation performance can be given by the following equation, as in the first to fifth embodiments. Under this definition, the larger the absolute value of the ISO value, the better the isolation performance.
- the impedance (including the reactance of the blocking capacitors 104a and 104b) when viewing the first electrode 105a and the second electrode 105b side (the side of the main body 10) from the side 212 is shown.
- Rp indicates a resistance component
- -Xp indicates a reactance component.
- X represents a reactance component (inductance component) of the impedance of the first coil 221 of the first balun 103.
- ISO has a correlation to X / Rp.
- the relationship shown in FIG. 4 holds also in the seventh embodiment.
- the inventor of the present invention also satisfies that 1.5 ⁇ X / Rp ⁇ 5000 in the internal space of the vacuum vessel 110 (the space between the first electrode 105a and the second electrode 105b) in the seventh embodiment. It has been found that it is advantageous to make the potential (plasma potential) of the plasma to be made insensitive to the state of the inner surface of the vacuum vessel 110.
- the fact that the plasma potential becomes insensitive to the state of the inner surface of the vacuum vessel 110 means that the plasma potential can be stabilized even when the plasma processing apparatus 1 is used for a long period of time.
- 1.5 ⁇ X / Rp ⁇ 5000 corresponds to ⁇ 10.0 dB ⁇ ISO ⁇ ⁇ 80 dB.
- FIGS. 15A to 15D show simulation results of the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2 potential) when 1.5 ⁇ X / Rp ⁇ 5000 is satisfied. It is shown.
- FIG. 15A shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2 potential) in a state where a resistive film (1 m ⁇ ) is formed on the inner surface of the vacuum vessel 110. Is shown.
- FIG. 15A shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2 potential) in a state where a resistive film (1 m ⁇ ) is formed on the inner surface of the vacuum vessel 110. Is shown.
- FIG. 15B shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2 potential) in a state where a resistive film (1000 ⁇ ) is formed on the inner surface of the vacuum vessel 110. Is shown.
- FIG. 15C shows the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2) when an inductive film (0.6 ⁇ H) is formed on the inner surface of the vacuum vessel 110. Potential).
- FIG. 15C shows the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2) when an inductive film (0.6 ⁇ H) is formed on the inner surface of the vacuum vessel 110. Potential).
- FIGS. 15A to 15D shows the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2) when a capacitive film (0.1 nF) is formed on the inner surface of the vacuum vessel 110. Potential). It is understood from FIGS. 15A to 15D that satisfying 1.5 ⁇ X / Rp ⁇ 5000 is advantageous for stabilizing the plasma potential of the inner surface of the vacuum vessel 110 in various states.
- FIG. 16A to 16D simulate the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2 potential) when 1.5 ⁇ X / Rp ⁇ 5000 is not satisfied. The results are shown.
- FIG. 16A shows a plasma potential, a potential of first electrode 105a (cathode 1 potential), and a potential of second electrode 105b (cathode 2 potential) in a state where a resistive film (1 m ⁇ ) is formed on the inner surface of vacuum vessel 110. Is shown.
- FIG. 16A shows a plasma potential, a potential of first electrode 105a (cathode 1 potential), and a potential of second electrode 105b (cathode 2 potential) in a state where a resistive film (1 m ⁇ ) is formed on the inner surface of vacuum vessel 110. Is shown.
- FIG. 16B shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2 potential) in a state where a resistive film (1000 ⁇ ) is formed on the inner surface of the vacuum vessel 110. Is shown.
- FIG. 16C shows the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the second electrode 105b (cathode 2) when an inductive film (0.6 ⁇ H) is formed on the inner surface of the vacuum vessel 110. Potential).
- FIG. 16B shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2 potential) in a state where a resistive film (1000 ⁇ ) is formed on the inner surface of the vacuum vessel 110.
- FIG. 16C shows the plasma potential, the potential of the first electrode 105a (cathode 1 potential), and the potential of the
- 16D shows a plasma potential, a potential of the first electrode 105a (cathode 1 potential), and a potential of the second electrode 105b (cathode 2) in a state where a capacitive film (0.1 nF) is formed on the inner surface of the vacuum vessel 110. Potential). 16A to 16D, it is understood that, when 1.5 ⁇ X / Rp ⁇ 5000 is not satisfied, the plasma potential changes depending on the state of the inner surface of the vacuum vessel 110.
- the plasma potential is likely to change depending on the state of the inner surface of the vacuum vessel 110.
- X / Rp> 5000 discharge occurs only between the first electrode 105a and the second electrode 105b in a state where a film is not formed on the inner surface of the vacuum vessel 110.
- X / Rp> 5000 when a film starts to form on the inner surface of the vacuum vessel 110, the plasma potential reacts sensitively thereto, with the result as illustrated in FIGS. 16A to 16D.
- FIG. 17 schematically shows a configuration of a plasma processing apparatus 1 according to the eighth embodiment of the present invention.
- the plasma processing apparatus according to the eighth embodiment can operate as a sputtering apparatus that forms a film on the substrate 112 by sputtering. Items not mentioned as the plasma processing apparatus 1 of the eighth embodiment can follow the first to seventh embodiments.
- the plasma processing apparatus 1 according to the eighth embodiment includes a balun (first balun) 103, a vacuum vessel 110, a first electrode 105a, and a second electrode 105b.
- the plasma processing apparatus 1 includes the balun 103 and the main body 10
- the main body 10 includes the vacuum vessel 110, the first electrode 105a, and the second electrode 105b.
- the main body 10 has a first terminal 251 and a second terminal 252.
- the first electrode 105a has a first holding surface HS1 holding a first target 109a as a first member
- the second electrode 105b has a second holding surface HS2 holding a second target 109b as a second member.
- the first holding surface HS1 and the second holding surface HS2 can belong to one plane PL.
- the plasma processing apparatus 1 may further include a second balun 303, a third electrode 141, and a fourth electrode 145.
- the plasma processing apparatus 1 connects the first balun 103, the second balun 303, the vacuum vessel 110, the first electrode 105a, the second electrode 105b, the third electrode 141, and the fourth electrode 145.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, and a main body 10
- the main body 10 includes a vacuum vessel 110, a first electrode 105a, a second electrode 105b, and a third electrode. 141 and the fourth electrode 145.
- the main body 10 has a first terminal 251, a second terminal 252, a third terminal 451, and a fourth terminal 452.
- the first balun 103 has a first unbalanced terminal 201, a second unbalanced terminal 202, a first balanced terminal 211, and a second balanced terminal 212.
- An unbalanced circuit is connected to the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103, and the unbalanced circuit is connected to the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103.
- a balancing circuit is connected.
- the second balun 303 can have the same configuration as the first balun 103.
- the second balun 303 has a third unbalanced terminal 401, a fourth unbalanced terminal 402, a third balanced terminal 411, and a fourth balanced terminal 412.
- An unbalanced circuit is connected to the third unbalanced terminal 401 and the fourth unbalanced terminal 402 of the second balun 303, and the third balun 303 is connected to the third unbalanced terminal 411 and the fourth unbalanced terminal 412 of the second balun 303.
- a balancing circuit is connected.
- the vacuum vessel 110 is grounded.
- Each of the baluns 103 and 303 can have, for example, the configuration illustrated in FIGS. 2A and 2B (FIG. 14).
- the first electrode 105a holds the first target 109a, and faces the space on the substrate 112 side to be processed via the first target 109a.
- the second electrode 105b is disposed adjacent to the first electrode 105a, holds the second target 109b, and faces the space on the side of the substrate 112 to be processed via the second target 109b.
- Targets 109a and 109b can be, for example, an insulator material or a conductor material.
- the first electrode 105a is electrically connected to the first balanced terminal 211 of the first balun 103
- the second electrode 105b is electrically connected to the second balanced terminal 212 of the first balun 103.
- the third electrode 141 holds the substrate 112.
- the fourth electrode 145 may be disposed around the third electrode 141.
- the third electrode 141 is electrically connected to the first balanced terminal 411 of the second balun 303, and the fourth electrode 145 is electrically connected to the second balanced terminal 412 of the second balun 303.
- the first electrode 105 a is electrically connected to the first terminal 251
- the second electrode 105 b is electrically connected to the second terminal 252
- the first terminal 251 is connected to the first balanced balun 103.
- the second terminal 252 is electrically connected to the terminal 211 and the second terminal 252 is connected to the second balanced terminal 212 of the first balun 103.
- the third electrode 141 is electrically connected to the third terminal 451
- the fourth electrode 145 is electrically connected to the fourth terminal 452, and the third terminal 451 is connected to the second balun 303.
- the fourth terminal 452 is electrically connected to the first balanced terminal 411 and the fourth terminal 452 is connected to the second balanced terminal 412 of the second balun 303.
- the first electrode 105a and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected by the first path PTH1.
- a variable reactance 511a may be arranged in the first path PTH1.
- the first electrode 105a and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected via the variable reactance 511a.
- the variable reactance 511a may include a capacitor that is connected between the first balanced terminal 211 of the first balun 103 and the first electrode 105a (or between the first balanced terminal 211 of the first balun 103 and the second balanced terminal 211). (Between the balanced terminal 212) can function as a blocking capacitor that blocks DC current.
- the second electrode 105b and the second balanced terminal 212 (second terminal 252) of the first balun 103 can be electrically connected by the second path PTH2.
- a variable reactance 511b may be arranged in the second path PTH2.
- the second electrode 105b and the second balanced terminal 212 (third terminal 252) of the first balun 103 can be electrically connected via the variable reactance 511b.
- the variable reactance 511b may include a capacitor between the second balanced terminal 212 of the first balun 103 and the second electrode 105b (or the first balanced terminal 211 of the first balun 103 and the second balanced terminal 211b). (Between the balanced terminal 212) can function as a blocking capacitor that blocks DC current.
- the first electrode 105a and the second electrode 105b can be supported by the vacuum vessel 110 via insulators 132a and 132b, respectively.
- the plasma processing apparatus 1 may include a variable reactance 521a disposed between the first electrode 105a and the ground.
- the plasma processing apparatus 1 may include a variable reactance 521b disposed between the second electrode 105b and the ground.
- the plasma processing apparatus 1 may include a variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- E a variable reactance 511b disposed between the second electrode 105b and the ground, and (e) a variable reactance 521b disposed on the second path PTH2 connecting the balanced terminal 212 and the second electrode 105b.
- at least one variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the amount by which the first target 109a is sputtered is adjusted.
- the relationship with the amount of the second target 109b to be sputtered can be adjusted.
- the value of the adjustment reactor By adjusting the value of the adjustment reactor, the balance between the amount of the first target 109a sputtered and the amount of the second target 109b sputtered can be adjusted.
- the relationship between the consumption of the first target 109a and the consumption of the second target 109b can be adjusted.
- the balance between the consumption of the first target 109a and the consumption of the second target 109b can be adjusted.
- Such a configuration is advantageous, for example, in that the replacement timing of the first target 109a and the replacement timing of the second target 109b are made the same, and the downtime of the plasma processing apparatus 1 is reduced. Further, the thickness distribution of a film formed on the substrate 112 can be adjusted.
- the third electrode 141 and the first balanced terminal 411 (third terminal 451) of the second balun 303 can be electrically connected via the blocking capacitor 304.
- the blocking capacitor 304 supplies a DC current between the first balanced terminal 411 of the second balun 303 and the third electrode 141 (or between the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303). Cut off.
- the second impedance matching circuit 302 may be configured to block a DC current flowing between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303. Good.
- the third electrode 141 and the fourth electrode 145 may be supported by the vacuum vessel 110 via insulators 142 and 146, respectively.
- the plasma processing apparatus 1 can include a first high-frequency power supply 101 and a first impedance matching circuit 102 disposed between the first high-frequency power supply 101 and the first balun 103.
- the first high frequency power supply 101 supplies a high frequency between the first electrode 105a and the second electrode 105b via the first impedance matching circuit 102, the first balun 103, and the first path PTH1.
- the first high frequency power supply 101 supplies a high frequency between the first terminal 251 and the second terminal 252 of the main body 10 via the first impedance matching circuit 102 and the first balun 103.
- the first balun 103, the first electrode 105a, and the second electrode 105b constitute a first high-frequency supply unit that supplies high frequency to the internal space of the vacuum vessel 110.
- the plasma processing apparatus 1 may include a second high-frequency power supply 301 and a second impedance matching circuit 302 disposed between the second high-frequency power supply 301 and the second balun 303.
- the second high frequency power supply 301 supplies a high frequency between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303 via the second impedance matching circuit 302.
- the second high frequency power supply 301 supplies a high frequency between the third electrode 141 and the fourth electrode 145 via the second impedance matching circuit 302, the second balun 303, and the blocking capacitor 304.
- the second high frequency power supply 301 supplies a high frequency between the third terminal 451 and the fourth terminal 452 of the main body 10 via the second impedance matching circuit 302 and the second balun 303.
- the second balun 303 and the third electrode 141 and the fourth electrode 145 constitute a second high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- the reactance component (inductance component) of the impedance of the first coil 221 of the first balun 103 is defined as X1.
- satisfying 1.5 ⁇ X1 / Rp1 ⁇ 5000 is particularly advantageous for stabilizing the potential of plasma formed in the internal space of the vacuum vessel 110.
- satisfying the condition of 1.5 ⁇ X / Rp1 ⁇ 5000 is not essential in the eighth embodiment and is an advantageous condition.
- the potential of the plasma can be stabilized more than when the balun 103 is not provided. Further, by providing the adjustment reactance, it is possible to adjust the relationship between the amount of the first target 109a sputtered and the amount of the second target 109b sputtered.
- the third electrode from the side of the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303.
- the impedance when viewing the side of 141 and the fourth electrode 145 (the side of the main body 10) is Rp2-jXp2.
- the reactance component (inductance component) of the impedance of the first coil 221 of the second balun 303 is defined as X2.
- satisfying 1.5 ⁇ X2 / Rp2 ⁇ 5000 is particularly advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- satisfying the condition of 1.5 ⁇ X / Rp2 ⁇ 5000 is not essential in the eighth embodiment and is an advantageous condition.
- FIG. 18 schematically shows a configuration of a plasma processing apparatus 1 according to a ninth embodiment of the present invention. Items not mentioned in the ninth embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the ninth embodiment includes at least one of a variable reactance 511a disposed on the first path PTH1 and a variable reactance 511b disposed on the second path PTH2.
- the plasma processing apparatus 1 preferably includes both the variable reactance 511a disposed on the first path PTH1 and the variable reactance 511b disposed on the second path PTH2.
- a fixed reactance may be used.
- the first variable reactance 511a includes at least the variable inductor 601a, and may preferably include the variable inductor 601a and the capacitor 602a.
- the variable inductor 601a may be arranged between the first balanced terminal 211 (first terminal 251) and the capacitor 602a, or may be arranged between the capacitor 602a and the first electrode 105a.
- the second variable reactance 511b includes at least the variable inductor 601b, and may preferably include the variable inductor 601b and the capacitor 602b.
- the variable inductor 601b may be arranged between the second balanced terminal 212 (second terminal 252) and the capacitor 602b, or may be arranged between the capacitor 602b and the second electrode 105b.
- FIG. 24 shows the film formed on the substrate 112 when the value of the variable inductor 601a of the first path PTH1 and the value of the variable inductor 601b of the second path PTH2 are set to 200 nH in the plasma processing apparatus 1 of the ninth embodiment.
- the thickness distribution is shown.
- the horizontal axis is the position in the horizontal direction (the direction parallel to the surface of the substrate 112) in FIG. 18, and indicates the distance from the center of the substrate 112.
- the thickness distribution of the film is significantly different between the left side and the right side of the center of the substrate 112.
- the values of the variable inductors 601a and 601b are 200 nH
- the symmetry of the film thickness distribution is high on the left and right sides of the center of the substrate 112.
- the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b are higher when the value of the variable inductors 601a and 601b is 200 nH than when the value of the variable inductors 601a and 601b is 400 nH. Good balance with 2 voltages.
- FIG. 25 shows the plasma processing apparatus 1 according to the ninth embodiment in which the values of the variable inductor 601a of the first path PTH1 and the variable inductor 601b of the second path PTH2 are changed. Voltages are shown. When the values of the variable inductors 601a and 601b are approximately 225 nH, the voltage applied to the first electrode 105a is substantially equal to the voltage applied to the second electrode 105b.
- FIG. 19 schematically shows the configuration of a plasma processing apparatus 1 according to the tenth embodiment of the present invention. Matters not mentioned in the tenth embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the tenth embodiment includes at least one of a variable reactance 511a disposed on the first path PTH1 and a variable reactance 511b disposed on the second path PTH2.
- the plasma processing apparatus 1 preferably includes both the variable reactance 511a disposed on the first path PTH1 and the variable reactance 511b disposed on the second path PTH2.
- a fixed reactance may be used.
- the first variable reactance 511a includes at least the variable capacitor 604a, and may preferably include the variable capacitor 604a and the inductor 603a.
- the variable capacitor 604a may be arranged between the inductor 603a and the first electrode 105a, or may be arranged between the first balanced terminal 211 (first terminal 251) and the inductor 603a.
- the second variable reactance 511b includes at least the variable capacitor 604b, and may preferably include the variable capacitor 604b and the inductor 603b.
- the variable capacitor 604b may be arranged between the inductor 603b and the second electrode 105b, or may be arranged between the second balanced terminal 212 (second terminal 252) and the inductor 603b.
- FIG. 20 schematically shows a configuration of a plasma processing apparatus 1 according to an eleventh embodiment of the present invention. Items not mentioned in the eleventh embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the eleventh embodiment includes a variable capacitor 605a as a variable reactance 521a disposed between the first electrode 105a and the ground, and a variable reactance disposed between the second electrode 105b and the ground. 521b is provided with at least one of the variable capacitors 605b.
- the plasma processing apparatus 1 further includes a reactance (inductor 603a and capacitor 602a in this example) disposed on the first path PTH1, and a reactance (inductor 603b and capacitor 602b in this example) disposed on the second path PTH2. May be provided.
- FIG. 21 schematically illustrates a configuration of a plasma processing apparatus 1 according to a twelfth embodiment of the present invention. Matters not mentioned in the twelfth embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the twelfth embodiment has at least one of a variable reactance 521a disposed between the first electrode 105a and the ground and a variable reactance 521b disposed between the second electrode 105b and the ground. It has.
- the variable reactance 521a includes at least the variable inductor 607a, and may include, for example, the variable inductor 607a and the capacitor 606a.
- the variable reactance 521b includes at least the variable inductor 607b, and may include, for example, the variable inductor 607b and the capacitor 606b.
- the plasma processing apparatus 1 further includes a reactance (in this example, an inductor 603a and a capacitor 602a) disposed on the first path PTH1, and a reactance (inductor 603b and capacitor 602b in this example) disposed on the second path PTH2. May be provided.
- a reactance in this example, an inductor 603a and a capacitor 602a
- a reactance in this example, an inductor 603b and capacitor 602b in this example
- FIG. 22 schematically shows a configuration of a plasma processing apparatus 1 according to a thirteenth embodiment of the present invention. Items not mentioned in the thirteenth embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the thirteenth embodiment includes a variable inductor 608 as a variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 further includes a reactance (inductor 603a and capacitor 602a in this example) disposed on the first path PTH1, and a reactance (inductor 603b and capacitor 602b in this example) disposed on the second path PTH2. May be provided.
- FIG. 23 schematically illustrates a configuration of a plasma processing apparatus 1 according to a fourteenth embodiment of the present invention. Matters not mentioned in the fourteenth embodiment can conform to the eighth embodiment.
- the plasma processing apparatus 1 according to the fourteenth embodiment includes a variable capacitor 609 as a variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 further includes a reactance (inductor 603a and capacitor 602a in this example) disposed on the first path PTH1, and a reactance (inductor 603b and capacitor 602b in this example) disposed on the second path PTH2. May be provided.
- the electrodes are arranged on the opposing surfaces of the targets 109a and 109b, but the present invention is not limited to the electrodes, and the so-called carousel type is used.
- a cylindrical substrate rotation holder in a plasma apparatus for example, JP-A-2003-155555, JP-A-62-133065
- a substrate tray of a rectangular shape or the like in a so-called in-line type plasma apparatus for example, Japanese Patent No. 5824072; Open 2011-144450
- FIG. 26 schematically shows a configuration of a plasma processing apparatus 1 according to a fifteenth embodiment of the present invention.
- the plasma processing apparatus 1 according to the fifteenth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the ninth embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal. To adjust.
- control unit 700 adjusts the values of the variable inductors 601a and 601b as adjustment reactances based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, respectively. , A second command value CNT2.
- the first command value CNT1 and the second command value CNT2 are supplied to variable inductors 601a and 601b, respectively.
- the variable inductors 601a and 601b change their own inductances according to the first command value CNT1 and the second command value CNT2, respectively.
- FIG. 27 schematically illustrates a configuration of a plasma processing apparatus 1 according to a sixteenth embodiment of the present invention.
- the plasma processing apparatus 1 according to the sixteenth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the tenth embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal. To adjust.
- control unit 700 adjusts the values of the variable capacitors 604a and 604b as adjustment reactances based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, respectively. , A second command value CNT2.
- the first command value CNT1 and the second command value CNT2 are supplied to variable capacitors 604a and 604b, respectively.
- the variable capacitors 604a and 604b change their capacitance in accordance with the first command value CNT1 and the second command value CNT2, respectively.
- FIG. 28 schematically shows a configuration of a plasma processing apparatus 1 according to a seventeenth embodiment of the present invention.
- the plasma processing apparatus 1 of the seventeenth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the eleventh embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal.
- the control unit 700 adjusts the values of the variable capacitors 605a and 605b as adjustment reactances based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, respectively.
- a second command value CNT2 is supplied to variable capacitors 605a and 605b, respectively.
- the variable capacitors 605a and 605b change their own capacitances according to the first command value CNT1 and the second command value CNT2, respectively.
- FIG. 29 schematically shows a configuration of a plasma processing apparatus 1 according to an eighteenth embodiment of the present invention.
- the plasma processing apparatus 1 according to the eighteenth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the twelfth embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal. To adjust.
- control unit 700 adjusts the values of the variable inductors 607a and 607b as adjustment reactances based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, respectively. , A second command value CNT2.
- the first command value CNT1 and the second command value CNT2 are supplied to variable inductors 607a and 607b, respectively.
- the variable inductors 607a and 607b change their own inductances according to the first command value CNT1 and the second command value CNT2, respectively.
- FIG. 30 schematically shows a configuration of a plasma processing apparatus 1 according to a nineteenth embodiment of the present invention.
- the plasma processing apparatus 1 of the nineteenth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirteenth embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal.
- the control unit 700 generates a command value CNT for adjusting the value of the variable inductor 608 as an adjustment reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- the command value CNT is supplied to the variable inductor 608.
- the variable inductor 608 changes its own inductance according to the command value.
- FIG. 31 schematically shows the configuration of a plasma processing apparatus 1 according to a twentieth embodiment of the present invention.
- the plasma processing apparatus 1 of the twentieth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the fourteenth embodiment shown in FIG.
- the control unit 700 adjusts the value of the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, for example, so that the first voltage V1 and the second voltage V2 become equal.
- the control unit 700 generates a command value CNT for adjusting the value of the variable capacitor 609 as an adjustment reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- the command value CNT is supplied to the variable capacitor 609.
- the variable capacitor 609 changes its own capacitance according to the command value CNT.
- FIG. 32 schematically illustrates a configuration of a plasma processing apparatus 1 according to a twenty-first embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-first embodiment can operate as an etching apparatus for etching the substrates 112a and 112b.
- the plasma processing apparatus 1 of the twenty-first embodiment is different in that the first electrode 105a and the second electrode 105b respectively hold the first substrate 112a and the second substrate 112b to be etched, and the third electrode 141 does not hold the substrate.
- the plasma processing apparatus 1 according to the eighth embodiment may have the same configuration as the plasma processing apparatus 1 according to the eighth embodiment in other respects.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- E a variable reactance 511b disposed between the second electrode 105b and the ground, and (e) a variable reactance 521b disposed on the second path PTH2 connecting the balanced terminal 212 and the second electrode 105b.
- at least one variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the distribution of the etching amount of the first substrate 112a and the second reactance are adjusted.
- the etching amount distribution of the two substrates 112b can be adjusted.
- the etching amount distribution of the first substrate 112a is adjusted by adjusting the value of the adjustment reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- the etching amount distribution of the second substrate 112b can be made the same.
- the electrodes are arranged on the opposing surfaces of the targets 109a and 109b.
- the present invention is not limited to the electrodes.
- a cylindrical substrate rotating holder in a plasma apparatus for example, JP-A-2003-1555526, JP-A-62-133065
- a rectangular substrate tray in a so-called in-line type plasma apparatus for example, Japanese Patent No. 5824072, (Open 2011-144450) may be arranged.
- the control unit 700 adjusts the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value.
- the control unit 700 may be configured to adjust the adjustment reactance based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b.
- the plasma intensity near the first electrode 105a can be detected by, for example, a photoelectric conversion device.
- the plasma intensity near the second electrode 105b can be detected by, for example, a photoelectric conversion device.
- the controller 700 may control the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. May be configured to adjust the value of the adjustment reactance such that
- the substrate 112 is processed in the plasma processing apparatus 1 according to any one of the eighth to twenty-first embodiments.
- the plasma processing method includes a step of adjusting an adjustment reactance such that a relationship between a first voltage applied to the first electrode 105a and a second voltage applied to the second electrode 105b is adjusted, and after the step, And processing the substrate 112.
- the treatment may include a step of forming a film on the substrate 112 by sputtering or a step of etching the substrate 112.
- FIG. 33 schematically illustrates a configuration of a plasma processing apparatus 1 according to a twenty-third embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-third embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the ninth embodiment shown in FIG.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance so that it becomes the value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a first command value CNT1 and a second command value CNT2 for adjusting the values of the variable inductors 601a and 601b as adjustment reactances are respectively generated so as to obtain the values.
- the first target value and the second target value may be equal to each other, or may be determined so that the difference between the first target value and the second target value matches the target difference value. .
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- the control unit 700 generates a command value CNT3 for controlling the impedance matching circuit 102.
- the control unit 700 controls the impedance matching circuit 102 so that the impedance matching circuit 102 has an impedance for igniting the plasma. Further, the control unit 700 changes the impedance of the impedance matching circuit 102 so that the plasma is stabilized after the ignition of the plasma.
- the impedance of the impedance matching circuit 102 is equal to the impedance Rp-jXp (the first electrode from the first balanced terminal 211 and the second balanced terminal 212) of the main body 10 when the plasma is generated.
- 105a and the second electrode 105b (impedance when viewing the side of the main body 10). At this time, the impedance of the impedance matching circuit 102 is Rp + jXp.
- the control unit 700 is, for example, a PLD (abbreviation of Programmable Logic Device) such as an FPGA (abbreviation of Field Programmable Gate Array), or an ASIC (abbreviation of Application Specialized Integrated or General Purpose, which is an Application Specialized Integrated Circuit or a general purpose program). Alternatively, it may be configured by a dedicated computer, or a combination of all or some of them.
- the program may be stored in a memory medium (computer-readable memory medium) or provided via a communication line.
- FIG. 40 illustrates the operation of the plasma processing apparatus 1 according to the twenty-third embodiment. This operation can be controlled by the control unit 700.
- the control unit 700 determines the command value CNT3 such that the impedance (Rpi + jXpi) of the impedance matching circuit 102 is set or changed to the plasma ignition impedance (Rpi-jXpi), and sets the command value CNT3. It is supplied to the impedance matching circuit 102.
- the impedance matching circuit 102 sets or changes its own impedance according to the command value CNT3.
- step S402 ignition step
- the control unit 700 activates (ON) the high-frequency power supply 402 to generate a high frequency while the impedance of the impedance matching circuit 102 is set to the impedance for plasma ignition.
- the high frequency generated by the high frequency power supply 402 is supplied to the first electrode 105a and the second electrode 105b via the impedance matching circuit 102, the balun 103, and the adjustment reactance (variable inductors 601a and 601b, capacitors 602a and 602b). Thereby, the plasma is ignited.
- step S403 the control unit 700 changes the impedance of the impedance matching circuit 102 so that the plasma is stabilized after ignition of the plasma. Specifically, in step S403, the control unit 700 determines the command value CNT3 so that the impedance at which the plasma is stabilized is set in the impedance matching circuit 700, and supplies the command value CNT3 to the impedance matching circuit 700.
- the impedance of the impedance matching circuit 102 matches the impedance Rp-jXp of the main body 10 (the first electrode 106 and the second electrode 111) when the plasma is generated. .
- the impedance of the impedance matching circuit 102 is Rp + jXp. Note that the value of Rp is different from Rpi, and the value of Xp is different from Xpi.
- step S404 the control unit 700 acquires the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- step S405 adjustment step
- the control unit 700 sets the first voltage V1 to the first target value based on the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b, A first command value CNT1 and a second command value CNT2 for adjusting the values of the variable inductors 601a and 601b as variable reactances so that the voltage V2 becomes the second target value are generated.
- the first command value CNT1 and the second command value CNT2 are supplied to variable inductors 601a and 601b, respectively.
- the variable inductors 601a and 601b adjust or change their own inductances according to the first command value CNT1 and the second command value CNT2, respectively.
- FIG. 41 shows a state in which plasma is generated in the internal space of the vacuum vessel 110 from the first balanced terminal 211 and the second balanced terminal 212 to the first electrode 105a and the second electrode 105b (the side of the main body 10). 4) illustrates the relationship between the reactance and the voltages of the first electrode 105a and the second electrode 105b.
- This reactance corresponds to -XP described above.
- the magnitude relationship between the voltages of the first electrode 105a and the second electrode 105b is changed by changing the reactance of the adjustment reactance.
- the change curves of the voltage of the first electrode 105a and the voltage of the second electrode 105b with respect to the change of the reactance show characteristics that cross each other.
- step S405 the control unit 700 sets the first voltage V1 to the first target value based on this characteristic and the voltage V1 of the first electrode 105a and the voltage V2 of the second electrode 105b, A first command value CNT1 and a second command value CNT2 for respectively adjusting the values of the variable inductors 601a and 601b so that the voltage V2 becomes the second target value may be generated.
- step S405 the control unit 700 determines the first command value CNT1 based on the voltage V1 of the first electrode 105a and the voltage V2 of the second electrode 105b. , The second command value CNT2 can be finely adjusted.
- step S407 the control unit 700 acquires the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Thereafter, in step S408, the control unit 700 determines whether the first voltage V1 has reached the first target value and whether the second voltage V2 has reached the second target value, and the first voltage V1 has reached the first target value. That is, if the second voltage V2 has reached the second target value, the process proceeds to step S409; otherwise, the process returns to step S405. In step S409 (processing step), the control unit 700 performs control so that the substrate 112 is processed.
- the control may include, for example, controlling opening and closing of a shutter (not shown) arranged between the target 109a and the substrate 112 and a shutter (not shown) arranged between the target 109b and the substrate 112. .
- the process shown in FIG. 40 may be executed manually.
- FIG. 3 of JP-A-2-156080 shows a high-frequency transformer (Tr7), a matching box (MB7), a vacuum vessel (10), a first target (T5), and a second target (T6).
- a sputtering device including a high-frequency voltage generator (OSC5), a voltage amplifier (PA5), a substrate holder (21), and a motor (22).
- the sputtering apparatus described in Japanese Patent Application Laid-Open No. 2-156080 discloses a sputter device which is provided between a high-frequency transformer (Tr7) and a first target (T5) and between a high-frequency transformer (Tr7) and a second target (T7).
- the matching box (MB7) located at has an adjustable reactance.
- the matching box (MB7) in the sputtering apparatus described in JP-A-2-156080 cannot operate like the adjusting reactance (variable inductors 601a and 601b) in the twenty-third embodiment. Because the matching box (MB7) is indispensable for impedance matching, and allowing the reactance of the matching box (MB7) to be freely adjusted, using the matching box (MB7) for impedance matching This is because plasma cannot be generated and plasma cannot be stabilized.
- the plasma (P5) generated in the sputtering apparatus described in Japanese Patent Application Laid-Open No. 2-156080 includes a region near the target (T5, T6), which is called a sheath, and which is in excess of ions, and a region of bulk plasma in contact with the sheath. It is understood that it will have The sheath will have a negative reactance component, similar to a capacitor, and the bulk plasma will have a positive reactance component, similar to an inductor. These reactance components can depend on the applied power, discharge pressure, electrode material, and the like, which are conditions for generating plasma. Therefore, the reactance of the plasma may take a positive value or a negative value, and its absolute value may also change.
- FIG. 34 schematically shows a configuration of a plasma processing apparatus 1 according to a twenty-fourth embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-fourth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the tenth embodiment shown in FIG. Items not mentioned in the twenty-fourth embodiment can follow the twenty-third embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance to a value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a first command value CNT1 and a second command value CNT2 for adjusting the values of the variable capacitors 604a and 604b as adjustment reactances to the respective values are generated.
- the first command value CNT1 and the second command value CNT2 are supplied to variable capacitors 604a and 604b, respectively.
- the variable capacitors 604a and 604b change their capacitance in accordance with the first command value CNT1 and the second command value CNT2, respectively.
- the control unit 700 generates a command value CNT3 for controlling the impedance matching circuit 102.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 35 schematically shows a configuration of a plasma processing apparatus 1 according to a twenty-fifth embodiment of the present invention.
- the plasma processing apparatus 1 according to the twenty-fifth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the twenty-fifth embodiment shown in FIG.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance so that it becomes the value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a first command value CNT1 and a second command value CNT2 for adjusting the values of the variable capacitors 605a and 605b as adjustment reactances are respectively generated so as to obtain the values.
- the first target value and the second target value may be equal to each other, or may be determined so that the difference between the first target value and the second target value matches the target difference value. .
- the first command value CNT1 and the second command value CNT2 are supplied to variable capacitors 605a and 605b, respectively.
- the variable capacitors 605a and 605b change their own capacitances according to the first command value CNT1 and the second command value CNT2, respectively.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 36 schematically illustrates a configuration of a plasma processing apparatus 1 according to a twenty-sixth embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-sixth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the twelfth embodiment shown in FIG. Items not mentioned in the twenty-sixth embodiment can be in accordance with the twenty-third embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance to a value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a first command value CNT1 and a second command value CNT2 for respectively adjusting the values of the variable inductors 607a and 607b as adjustment reactances so as to have values are generated.
- the first command value CNT1 and the second command value CNT2 are supplied to variable inductors 607a and 607b, respectively.
- the variable inductors 607a and 607b change their own inductances according to the first command value CNT1 and the second command value CNT2, respectively.
- the control unit 700 generates a command value CNT3 for controlling the impedance matching circuit 102.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 37 schematically shows a configuration of a plasma processing apparatus 1 according to a twenty-seventh embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-seventh embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirteenth embodiment shown in FIG. Items not mentioned in the twenty-seventh embodiment can conform to the twenty-third embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance to a value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a command value CNT for adjusting the value of the variable inductor 608 as an adjustment reactance to a value is generated.
- the command value CNT is supplied to the variable inductor 608.
- the variable inductor 608 changes its own inductance according to the command value.
- the control unit 700 generates a command value CNT3 for controlling the impedance matching circuit 102.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 38 schematically shows a configuration of a plasma processing apparatus 1 according to a twenty-eighth embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-eighth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the fourteenth embodiment shown in FIG. Items not mentioned in the twenty-eighth embodiment can conform to the twenty-third embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the second voltage V2 to the second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value of the adjustment reactance to a value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a command value CNT for adjusting the value of the variable capacitor 609 as an adjustment reactance to a value is generated.
- the command value CNT is supplied to the variable capacitor 609.
- the variable capacitor 609 changes its own capacitance according to the command value CNT.
- the control unit 700 generates a command value CNT3 for controlling the impedance matching circuit 102.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 39 schematically illustrates a configuration of a plasma processing apparatus 1 according to a twenty-ninth embodiment of the present invention.
- the plasma processing apparatus 1 of the twenty-ninth embodiment can operate as an etching apparatus for etching the substrates 112a and 112b.
- the plasma processing apparatus 1 according to the twenty-ninth embodiment may have the same configuration as the plasma processing apparatus 1 according to the twenty-first embodiment, except for the control unit 700. Items not mentioned in the twenty-ninth embodiment can be in accordance with the twenty-third embodiment.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- E a variable reactance 511b disposed between the second electrode 105b and the ground, and (e) a variable reactance 521b disposed on the second path PTH2 connecting the balanced terminal 212 and the second electrode 105b.
- at least one variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the distribution of the etching amount of the first substrate 112a and the second reactance are adjusted.
- the etching amount distribution of the two substrates 112b can be adjusted.
- the etching amount distribution of the first substrate 112a is adjusted by adjusting the value of the adjustment reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- the etching amount distribution of the second substrate 112b can be made the same.
- the electrodes are arranged on the opposing surfaces of the targets 109a and 109b.
- the present invention is not limited to the electrodes, and may be a so-called carousel type.
- a cylindrical substrate rotation holder in a plasma apparatus for example, JP-A-2003-155555, JP-A-62-133065
- a substrate tray of a rectangular shape or the like in a so-called in-line type plasma apparatus for example, Japanese Patent No. 5824072; (Open 2011-144450) may be arranged.
- the control unit 700 adjusts the adjusted reactance based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Adjust the value.
- the control unit 700 may be configured to adjust the adjustment reactance based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b.
- the plasma intensity near the first electrode 105a can be detected by, for example, a photoelectric conversion device.
- the plasma intensity near the second electrode 105b can be detected by, for example, a photoelectric conversion device.
- the controller 700 may control the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. May be configured to adjust the value of the adjustment reactance such that
- FIG. 42 schematically shows a configuration of a plasma processing apparatus 1 according to a thirtieth embodiment of the present invention.
- the plasma processing apparatus according to the thirtieth embodiment can operate as a sputtering apparatus for forming a film on the substrate 112 by sputtering. Items not mentioned as the plasma processing apparatus 1 of the thirtieth embodiment can be in accordance with the first to twenty-ninth embodiments.
- the plasma processing apparatus 1 according to the thirtieth embodiment includes a balun (first balun) 103, a vacuum vessel 110, a first electrode 105a, and a second electrode 105b.
- the plasma processing apparatus 1 includes the balun 103 and the main body 10, and the main body 10 includes the vacuum vessel 110, the first electrode 105a, and the second electrode 105b.
- the main body 10 has a first terminal 251 and a second terminal 252.
- the first electrode 105a has a first holding surface HS1 holding a first target 109a as a first member
- the second electrode 105b has a second holding surface HS2 holding a second target 109b as a second member.
- the first holding surface HS1 and the second holding surface HS2 can belong to one plane PL.
- the plasma processing apparatus 1 may further include a second balun 303, a third electrode 141, and a fourth electrode 145.
- the plasma processing apparatus 1 connects the first balun 103, the second balun 303, the vacuum vessel 110, the first electrode 105a, the second electrode 105b, the third electrode 141, and the fourth electrode 145.
- the plasma processing apparatus 1 includes a first balun 103, a second balun 303, and a main body 10
- the main body 10 includes a vacuum vessel 110, a first electrode 105a, a second electrode 105b, and a third electrode. 141 and the fourth electrode 145.
- the main body 10 has a first terminal 251, a second terminal 252, a third terminal 451, and a fourth terminal 452.
- the first balun 103 has a first unbalanced terminal 201, a second unbalanced terminal 202, a first balanced terminal 211, and a second balanced terminal 212.
- An unbalanced circuit is connected to the first unbalanced terminal 201 and the second unbalanced terminal 202 of the first balun 103, and the unbalanced circuit is connected to the first balanced terminal 211 and the second balanced terminal 212 of the first balun 103.
- a balancing circuit is connected.
- the second balun 303 can have the same configuration as the first balun 103.
- the second balun 303 has a third unbalanced terminal 401, a fourth unbalanced terminal 402, a third balanced terminal 411, and a fourth balanced terminal 412.
- An unbalanced circuit is connected to the third unbalanced terminal 401 and the fourth unbalanced terminal 402 of the second balun 303, and the third balun 303 is connected to the third unbalanced terminal 411 and the fourth unbalanced terminal 412 of the second balun 303.
- a balancing circuit is connected.
- the vacuum vessel 110 is grounded.
- Each of the baluns 103 and 303 can have, for example, the configuration illustrated in FIGS. 2A and 2B (FIG. 14).
- the first electrode 105a holds the first target 109a, and faces the space on the substrate 112 side to be processed via the first target 109a.
- the second electrode 105b is arranged next to the first electrode 105a, holds the second target 109b, and faces the space on the substrate 112 side to be processed via the second target 109b.
- Targets 109a and 109b can be, for example, an insulator material or a conductor material.
- the first electrode 105a is electrically connected to the first balanced terminal 211 of the first balun 103
- the second electrode 105b is electrically connected to the second balanced terminal 212 of the first balun 103.
- the third electrode 141 holds the substrate 112.
- the fourth electrode 145 may be disposed around the third electrode 141.
- the third electrode 141 is electrically connected to the first balanced terminal 411 of the second balun 303, and the fourth electrode 145 is electrically connected to the second balanced terminal 412 of the second balun 303.
- the first electrode 105 a is electrically connected to the first terminal 251
- the second electrode 105 b is electrically connected to the second terminal 252
- the first terminal 251 is connected to the first balanced balun 103.
- the second terminal 252 is electrically connected to the terminal 211 and the second terminal 252 is connected to the second balanced terminal 212 of the first balun 103.
- the third electrode 141 is electrically connected to the third terminal 451
- the fourth electrode 145 is electrically connected to the fourth terminal 452, and the third terminal 451 is connected to the second balun 303.
- the fourth terminal 452 is electrically connected to the first balanced terminal 411 and the fourth terminal 452 is connected to the second balanced terminal 412 of the second balun 303.
- the first electrode 105a and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected by the first path PTH1.
- a reactance 511a can be arranged in the first path PTH1.
- the first electrode 105a and the first balanced terminal 211 (first terminal 251) of the first balun 103 can be electrically connected via the reactance 511a.
- the reactance 511a may include a capacitor between the first balanced terminal 211 of the first balun 103 and the first electrode 105a (or the first balanced terminal 211 of the first balun 103 and the second balanced terminal 211). (Between terminal 212) can function as a blocking capacitor that blocks DC current.
- the second electrode 105b and the second balanced terminal 212 (second terminal 252) of the first balun 103 can be electrically connected by the second path PTH2.
- a reactance 511b can be arranged in the second path PTH2.
- the second electrode 105b and the second balanced terminal 212 (third terminal 252) of the first balun 103 can be electrically connected via the reactance 511b.
- the reactance 511b may include a capacitor between the second balanced terminal 212 of the first balun 103 and the second electrode 105b (or the first balanced terminal 211 of the first balun 103 and the second balanced terminal 211b).
- Between terminal 212) can function as a blocking capacitor that blocks DC current.
- the first electrode 105a and the second electrode 105b can be supported by the vacuum vessel 110 via insulators 132a and 132b, respectively.
- the plasma processing apparatus 1 may include a reactance 521a disposed between the first electrode 105a and the ground.
- the plasma processing apparatus 1 may include a reactance 521b disposed between the second electrode 105b and the ground.
- the plasma processing apparatus 1 may include a reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- the third electrode 141 and the first balanced terminal 411 (third terminal 451) of the second balun 303 can be electrically connected via the blocking capacitor 304.
- the blocking capacitor 304 supplies a DC current between the first balanced terminal 411 of the second balun 303 and the third electrode 141 (or between the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303). Cut off.
- the second impedance matching circuit 302 may be configured to block a DC current flowing between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303. Good.
- the third electrode 141 and the fourth electrode 145 may be supported by the vacuum vessel 110 via insulators 142 and 146, respectively.
- the plasma processing apparatus 1 may include the first high-frequency power supply 101 that generates a high frequency supplied between the first unbalanced terminal 201 and the second unbalanced terminal 202.
- the high frequency power supply 101 is capable of changing the frequency of the high frequency supplied between the first unbalanced terminal 201 and the second unbalanced terminal 202.
- the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b can be adjusted.
- the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b can be adjusted by changing the frequency.
- the frequency by adjusting the frequency, the relationship between the amount of the first target 109a sputtered and the amount of the second target 109b sputtered can be adjusted.
- the frequency by adjusting the frequency, the balance between the amount by which the first target 109a is sputtered and the amount by which the second target 109b is sputtered can be adjusted.
- the relationship between the consumption of the first target 109a and the consumption of the second target 109b can be adjusted.
- the balance between the consumption of the first target 109a and the consumption of the second target 109b can be adjusted.
- Such a configuration is advantageous, for example, in that the replacement timing of the first target 109a and the replacement timing of the second target 109b are made the same, and the downtime of the plasma processing apparatus 1 is reduced. Further, by adjusting the frequency, the thickness distribution of a film formed on the substrate 112 can be adjusted.
- the plasma processing apparatus 1 may further include a first impedance matching circuit 102 disposed between the first high-frequency power supply 101 and the first balun 103.
- the first high frequency power supply 101 supplies a high frequency between the first electrode 105a and the second electrode 105b via the first impedance matching circuit 102, the first balun 103, and the first path PTH1.
- the first high frequency power supply 101 supplies a high frequency between the first terminal 251 and the second terminal 252 of the main body 10 via the first impedance matching circuit 102 and the first balun 103.
- the first balun 103, the first electrode 105a, and the second electrode 105b constitute a first high-frequency supply unit that supplies high frequency to the internal space of the vacuum vessel 110.
- the plasma processing apparatus 1 may include a second high-frequency power supply 301 and a second impedance matching circuit 302 disposed between the second high-frequency power supply 301 and the second balun 303.
- the second high frequency power supply 301 supplies a high frequency between the first unbalanced terminal 401 and the second unbalanced terminal 402 of the second balun 303 via the second impedance matching circuit 302.
- the second high frequency power supply 301 supplies a high frequency between the third electrode 141 and the fourth electrode 145 via the second impedance matching circuit 302, the second balun 303, and the blocking capacitor 304.
- the second high frequency power supply 301 supplies a high frequency between the third terminal 451 and the fourth terminal 452 of the main body 10 via the second impedance matching circuit 302 and the second balun 303.
- the second balun 303 and the third electrode 141 and the fourth electrode 145 constitute a second high-frequency supply unit that supplies a high frequency to the internal space of the vacuum vessel 110.
- the reactance component (inductance component) of the impedance of the first coil 221 of the first balun 103 is defined as X1.
- satisfying 1.5 ⁇ X1 / Rp1 ⁇ 5000 is particularly advantageous for stabilizing the potential of plasma formed in the internal space of the vacuum vessel 110.
- satisfying the condition of 1.5 ⁇ X / Rp1 ⁇ 5000 is not essential in the thirtieth embodiment, but is an advantageous condition.
- the balun 103 by providing the balun 103, the potential of the plasma can be stabilized more than when the balun 103 is not provided. Further, by providing the high-frequency power supply 101 capable of changing the frequency of the generated high frequency, the relationship between the amount of the first target 109a sputtered and the amount of the second target 109b sputtered can be adjusted.
- the third electrode from the side of the first balanced terminal 411 and the second balanced terminal 412 of the second balun 303.
- the impedance when viewing the side of 141 and the fourth electrode 145 (the side of the main body 10) is Rp2-jXp2.
- the reactance component (inductance component) of the impedance of the first coil 221 of the second balun 303 is defined as X2.
- satisfying 1.5 ⁇ X2 / Rp2 ⁇ 5000 is particularly advantageous for stabilizing the potential of the plasma formed in the internal space of the vacuum vessel 110.
- satisfying the condition of 1.5 ⁇ X / Rp2 ⁇ 5000 is not essential in the thirtieth embodiment, but is an advantageous condition.
- FIG. 43 schematically shows a configuration of a plasma processing apparatus 1 according to a thirty-first embodiment of the present invention. Items not mentioned in the thirty-first embodiment can conform to the thirty-third embodiment.
- the plasma processing apparatus 1 according to the thirty-first embodiment includes at least one of a reactance 511a disposed on the first path PTH1 and a reactance 511b disposed on the second path PTH2.
- the plasma processing apparatus 1 preferably includes both a reactance 511a disposed on the first path PTH1 and a reactance 511b disposed on the second path PTH2.
- the first reactance 511a may include an inductor 601a and a capacitor 602a.
- the inductor 601a may be arranged between the first balanced terminal 211 (first terminal 251) and the capacitor 602a, or may be arranged between the capacitor 602a and the first electrode 105a.
- Second reactance 511b may include inductor 601b and capacitor 602b.
- the inductor 601b may be arranged between the second balanced terminal 212 (second terminal 252) and the capacitor 602b, or may be arranged between the capacitor 602b and the second electrode 105b.
- FIG. 47 shows the normalized thickness distribution of the film formed on the substrate 112 when the high frequency generated by the high frequency power supply 101 is set to 12.56 MHz in the plasma processing apparatus 1 of the thirty-first embodiment. It is shown.
- FIG. 47 shows the normalized thickness of the film formed on the substrate 112 when the frequency of the high frequency generated by the high frequency power supply 101 is set to 13.56 MHz in the plasma processing apparatus 1 of the thirty-first embodiment. The distribution is shown.
- the horizontal axis is the position in the horizontal direction (the direction parallel to the surface of the substrate 112) in FIG. 43, and indicates the distance from the center of the substrate 112.
- the thickness distribution of the film is significantly different between the left side and the right side of the center of the substrate 112.
- the symmetry of the film thickness distribution is high between the left side and the right side of the center of the substrate 112.
- the first voltage applied to the first electrode 105a is lower than when the frequency of the high frequency generated by the high-frequency power supply 101 is 12.56 MHz.
- the balance with the second voltage applied to the second electrode 105b is good.
- FIG. 48 shows a voltage (first voltage) of the first electrode 105a and a voltage (second voltage) of the second electrode 105b when the frequency of the high frequency generated by the high frequency power supply 101 is changed in the plasma processing apparatus 1 of the thirtieth embodiment. 2nd voltage) is illustrated.
- the voltage of the first electrode 105a (first voltage) and the voltage of the second electrode 105b (second voltage) can be adjusted by changing the frequency of the high frequency generated by the high frequency power supply 101.
- the relationship between the voltage (first voltage) of the first electrode 105a and the voltage (second voltage) of the second electrode 105b can be adjusted by changing the frequency of the high frequency generated by the high-frequency power supply 101.
- the frequency of the high frequency generated by the high-frequency power supply 101 can be adjusted so that the voltage (first voltage) of the first electrode 105a is equal to the voltage (second voltage) of the second electrode 105b.
- the amount of the first target 109a to be sputtered can be made equal to the amount of the second target 109b to be sputtered. This is advantageous, for example, in that the replacement timing of the first target 109a and the replacement timing of the second target 109b are made the same, and the downtime of the plasma processing apparatus 1 is reduced.
- FIG. 44 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-second embodiment of the present invention. Items not mentioned in the 32nd embodiment can follow the 30th embodiment.
- the plasma processing apparatus 1 according to the 32nd embodiment includes at least one of a reactance 521a disposed between the first electrode 105a and the ground, and a reactance 521b disposed between the second electrode 105b and the ground. ing.
- Reactance 521a may include, for example, inductor 607a and capacitor 606a.
- Reactance 521b may include, for example, inductor 607b and capacitor 606b.
- the plasma processing apparatus 1 further includes a reactance 511a (in this example, an inductor 603a and a capacitor 602a) disposed on the first path PTH1, and a reactance 511b (in this example, an inductor 603b and a capacitor) disposed on the second path PTH2. 602b).
- a reactance 511a in this example, an inductor 603a and a capacitor 602a
- a reactance 511b in this example, an inductor 603b and a capacitor
- FIG. 45 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-third embodiment of the present invention. Items not mentioned in the thirty-third embodiment can conform to the thirty-third embodiment.
- the plasma processing apparatus 1 according to the thirty-third embodiment includes an inductor 608 as a reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 further includes a reactance 511a (in this example, an inductor 603a and a capacitor 602a) disposed on the first path PTH1, and a reactance 511b (in this example, an inductor 603b and a capacitor) disposed on the second path PTH2. 602b).
- FIG. 46 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-third embodiment of the present invention. Items not mentioned in the thirty-third embodiment can conform to the thirty-third embodiment.
- the plasma processing apparatus 1 according to the thirty-third embodiment includes a capacitor 609 as a variable reactance 530 that connects the first path PTH1 and the second path PTH2.
- the plasma processing apparatus 1 further includes a reactance 511a (in this example, an inductor 603a and a capacitor 602a) disposed on the first path PTH1, and a reactance 511b (in this example, an inductor 603b and a capacitor) disposed on the second path PTH2. 602b).
- the electrodes are arranged on the opposing surfaces of the targets 109a and 109b.
- the present invention is not limited to the electrodes, and is a so-called carousel type.
- a cylindrical substrate rotation holder for example, JP-A-2003-1555526, JP-A-62-133065
- a plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- in-line type plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- FIG. 49 schematically shows a configuration of a plasma processing apparatus 1 according to a thirty-fifth embodiment of the present invention.
- the plasma processing apparatus 1 of the thirty-fifth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirty-first embodiment shown in FIG.
- the control unit 700 controls the high-frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b such that the first voltage V1 is equal to the second voltage V2, for example. Adjust the frequency of the generated high frequency. For example, the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjustment reactance changes. A command value CNT to be adjusted is generated. The command value CNT is supplied to the high frequency power supply 101. The high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNT.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 50 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-sixth embodiment of the present invention.
- the plasma processing apparatus 1 of the thirty-sixth embodiment has a configuration obtained by adding a control unit 700 to the plasma processing apparatus 1 of the thirty-second embodiment shown in FIG.
- the control unit 700 controls the high-frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b such that the first voltage V1 is equal to the second voltage V2, for example. Adjust the frequency of the generated high frequency.
- the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjustment reactance changes.
- a command value CNT to be adjusted is generated.
- the command value CNT is supplied to the high frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNT.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 51 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-seventh embodiment of the present invention.
- the plasma processing apparatus 1 of the thirty-seventh embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirty-third embodiment shown in FIG.
- the control unit 700 controls the high-frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b such that the first voltage V1 is equal to the second voltage V2, for example. Adjust the frequency of the generated high frequency.
- the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjustment reactance changes.
- a command value CNT to be adjusted is generated.
- the command value CNT is supplied to the high frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNT.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 52 schematically illustrates a configuration of a plasma processing apparatus 1 according to a thirty-eighth embodiment of the present invention.
- the plasma processing apparatus 1 according to the thirty-eighth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the thirty-fourth embodiment shown in FIG.
- the control unit 700 controls the high-frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b such that the first voltage V1 is equal to the second voltage V2, for example. Adjust the frequency of the generated high frequency.
- the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjustment reactance changes.
- a command value CNT to be adjusted is generated.
- the command value CNT is supplied to the high frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNT.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 53 schematically shows a configuration of a plasma processing apparatus 1 according to a thirty-ninth embodiment of the present invention.
- the plasma processing apparatus 1 according to the thirty-ninth embodiment can operate as an etching apparatus for etching the substrates 112a and 112b.
- the plasma processing apparatus 1 of the thirty-ninth embodiment is different from the plasma processing apparatus 1 in that the first electrode 105a and the second electrode 105b respectively hold the first substrate 112a and the second substrate 112b to be etched, and the third electrode 141 does not hold the substrate.
- the plasma processing apparatus 1 of the thirtieth embodiment it can have the same configuration as the plasma processing apparatus 1 of the thirtieth embodiment in other points.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- the etching amount distribution of the first substrate 112a and the etching amount distribution of the second substrate 112b can be adjusted.
- the etching amount distribution of the first substrate 112a and the etching amount distribution of the second substrate 112b can be made the same.
- the electrodes are arranged on the opposing surfaces of the targets 109a and 109b.
- the present invention is not limited to the electrodes, and is a so-called carousel type.
- a cylindrical substrate rotation holder for example, JP-A-2003-1555526, JP-A-62-133065
- a plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- in-line type plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- the control unit 700 controls the high-frequency power source 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- the frequency of the high frequency at which is generated is adjusted.
- the control unit 700 adjusts the frequency of the high frequency generated by the high-frequency power supply 101 based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. It may be configured.
- the plasma intensity near the first electrode 105a can be detected by, for example, a photoelectric conversion device.
- the plasma intensity near the second electrode 105b can be detected by, for example, a photoelectric conversion device.
- the controller 700 may control the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. Can be configured so that the frequency of the high frequency generated by the high frequency power supply 101 becomes equal.
- the plasma processing method according to the fortieth embodiment processes the substrate 112 in the plasma processing apparatus 1 according to any one of the thirty to thirty-ninth embodiments.
- the plasma processing method adjusts the frequency of the high frequency generated by the high frequency power supply 101 such that the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b is adjusted.
- the method may include a step of processing the substrate 112 after the step.
- the treatment may include a step of forming a film on the substrate 112 by sputtering or a step of etching the substrate 112.
- FIG. 54 schematically illustrates a configuration of a plasma processing apparatus 1 according to a forty-first embodiment of the present invention.
- the plasma processing apparatus 1 of the forty-first embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirty-first embodiment shown in FIG.
- the control unit 700 may set the first voltage V1 to a first target value and set the second voltage V2 to a second target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- the frequency of the high frequency generated by the high frequency power supply 101 is adjusted so as to have a value.
- the control unit 700 sets the first voltage V1 to the first target value and sets the second voltage V2 to the second target value.
- a command value CNTosc for adjusting the frequency of the high frequency generated by the high frequency power supply 101 is generated such that the value of the adjustment reactance changes to a value.
- the command value CNTosc is supplied to the high-frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNTosc.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- the control unit 700 generates a command value CNTmb for controlling the impedance matching circuit 102.
- the control unit 700 controls the impedance matching circuit 102 so that the impedance matching circuit 102 has an impedance for igniting the plasma. Further, the control unit 700 changes the impedance of the impedance matching circuit 102 so that the plasma is stabilized after the ignition of the plasma.
- the impedance of the impedance matching circuit 102 is equal to the impedance Rp-jXp (the first electrode from the first balanced terminal 211 and the second balanced terminal 212) of the main body 10 when the plasma is generated.
- 105a and the second electrode 105b is configuredance when viewing the side of the main body 10.
- the impedance of the impedance matching circuit 102 is Rp + jXp.
- the control unit 700 is, for example, a PLD (abbreviation of Programmable Logic Device) such as an FPGA (abbreviation of Field Programmable Gate Array), or an ASIC (abbreviation of Application Specialized Integrated or General Purpose, which is an Application Specialized Integrated Circuit or a general purpose program). Alternatively, it may be configured by a dedicated computer, or a combination of all or some of them.
- the program may be stored in a memory medium (computer-readable memory medium) or provided via a communication line.
- FIG. 40 illustrates the operation of the plasma processing apparatus 1 according to the thirty-ninth embodiment. This operation can be controlled by the control unit 700.
- the control unit 700 supplies the command value CNTmb to the impedance matching circuit 102 such that the impedance of the impedance matching circuit 102 is set or changed to the plasma ignition impedance.
- the impedance matching circuit 102 sets or changes its own impedance according to the command value CNTmb.
- step S402 ignition step
- the control unit 700 activates (ON) the high-frequency power supply 402 to generate a high frequency while the impedance of the impedance matching circuit 102 is set to the impedance for plasma ignition.
- the high frequency generated by the high frequency power supply 402 is supplied to the first electrode 105a and the second electrode 105b via the impedance matching circuit 102, the balun 103, and the adjustment reactance (variable inductors 601a and 601b, capacitors 602a and 602b). Thereby, the plasma is ignited.
- step S403 the control unit 700 changes the impedance of the impedance matching circuit 102 so that the plasma is stabilized after ignition of the plasma. Specifically, in step S403, the control unit 700 determines the command value CNTmb so that the impedance at which the plasma is stabilized is set in the impedance matching circuit 700, and supplies the command value CNTmb to the impedance matching circuit 700.
- the impedance matching circuit 102 sets or changes its own impedance according to the command value CNTmb.
- step S404 the control unit 700 acquires the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- step S405 adjustment step
- the control unit 700 sets the first voltage V1 to the first target value based on the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b
- a command value CNTosc is generated such that the values of the variable inductors 601a and 601b as variable reactances are adjusted so that the voltage V2 becomes the second target value.
- the command value CNTosc is supplied to the high-frequency power supply 402.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNTosc.
- FIG. 59 illustrates the relationship between the high frequency generated by the high frequency power supply 101 and the voltages of the first electrode 105a and the second electrode 105b.
- This reactance corresponds to -XP described above.
- the voltage of the first electrode 105a and the voltage of the second electrode 105b are changed by changing the reactance of the adjustment reactance due to the change of the frequency of the high frequency generated by the high frequency power supply 101. Is replaced.
- the change curves of the voltage of the first electrode 105a and the voltage of the second electrode 105b with respect to the change in the frequency of the high frequency generated by the high-frequency power supply 101 show characteristics that cross each other.
- step S405 the control unit 700 sets the first voltage V1 to the first target value based on this characteristic and the voltage V1 of the first electrode 105a and the voltage V2 of the second electrode 105b, A command value CNTosc for adjusting the frequency of the high frequency generated by the high frequency power supply 101 so that the voltage V2 becomes the second target value may be generated.
- step S405 the control unit 700 finely adjusts the command value CNTosc based on the voltage V1 of the first electrode 105a and the voltage V2 of the second electrode 105b. Can be adjusted.
- step S407 the control unit 700 acquires the voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Thereafter, in step S408, the control unit 700 determines whether the first voltage V1 has reached the first target value and whether the second voltage V2 has reached the second target value, and the first voltage V1 has reached the first target value. That is, if the second voltage V2 has reached the second target value, the process proceeds to step S409; otherwise, the process returns to step S405. In step S409 (processing step), the control unit 700 performs control so that the substrate 112 is processed.
- the control may include, for example, controlling opening and closing of a shutter (not shown) arranged between the target 109a and the substrate 112 and a shutter (not shown) arranged between the target 109b and the substrate 112. .
- the process shown in FIG. 40 may be executed manually.
- FIG. 55 schematically illustrates a configuration of a plasma processing apparatus 1 according to a forty-second embodiment of the present invention.
- the plasma processing apparatus 1 of the forty-second embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirty-second embodiment shown in FIG. Items not mentioned in the forty-second embodiment can conform to the forty-first embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the first voltage V1 to the first target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Value, and adjusts the frequency of the high frequency generated by the high frequency power supply 101 so that the second voltage V2 becomes the second target value.
- control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjusted reactance changes.
- a command value CNTosc to be adjusted is generated.
- the command value CNTosc is supplied to the high-frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNTosc.
- FIG. 56 schematically shows a configuration of a plasma processing apparatus 1 according to a forty-third embodiment of the present invention.
- the plasma processing apparatus 1 according to the forty-third embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 according to the thirty-third embodiment shown in FIG. Items not mentioned in the forty-third embodiment can be in accordance with the forty-first embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the first voltage V1 to the first target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Value, and adjusts the frequency of the high frequency generated by the high frequency power supply 101 so that the second voltage V2 becomes the second target value.
- the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjusted reactance changes.
- a command value CNTosc to be adjusted is generated.
- the command value CNTosc is supplied to the high-frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNTosc.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 57 schematically shows a configuration of a plasma processing apparatus 1 according to a forty-fourth embodiment of the present invention.
- the plasma processing apparatus 1 of the forty-fourth embodiment has a configuration in which a control unit 700 is added to the plasma processing apparatus 1 of the thirty-fourth embodiment shown in FIG. Items not mentioned in the forty-second embodiment can conform to the forty-first embodiment.
- the control unit 700 may set the first voltage V1 to the first target value and set the first voltage V1 to the first target value based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b. Value, and adjusts the frequency of the high frequency generated by the high frequency power supply 101 so that the second voltage V2 becomes the second target value.
- the control unit 700 changes the frequency of the high frequency generated by the high frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b so that the value of the adjusted reactance changes.
- a command value CNTosc to be adjusted is generated.
- the command value CNTosc is supplied to the high-frequency power supply 101.
- the high frequency power supply 101 changes the frequency of the high frequency generated by itself according to the command value CNTosc.
- the control unit 700 may include a measurement unit that measures a first voltage V1 that is a voltage of the first electrode 105a and a second voltage V2 that is a voltage of the second electrode 105b. Alternatively, such a measurement may be provided separately from the control unit 700.
- FIG. 58 schematically shows a configuration of a plasma processing apparatus 1 according to a forty-fifth embodiment of the present invention.
- the plasma processing apparatus 1 according to the forty-fifth embodiment can operate as an etching apparatus for etching the substrates 112a and 112b.
- the plasma processing apparatus 1 according to the forty-fifth embodiment may have the same configuration as the plasma processing apparatus 1 according to the thirtieth embodiment except for the control unit 700. Items not mentioned in the forty-fifth embodiment can conform to the forty-first embodiment.
- the plasma processing apparatus 1 includes (a) a control reactance that affects the relationship between the first voltage applied to the first electrode 105a and the second voltage applied to the second electrode 105b.
- the etching amount distribution of the first substrate 112a and the etching amount distribution of the second substrate 112b can be adjusted.
- the etching amount distribution of the first substrate 112a and the etching amount distribution of the second substrate 112b can be made the same.
- the electrodes are arranged on the surfaces facing the targets 109a and 109b.
- the present invention is not limited to the electrodes, and the so-called carousel type is used.
- a cylindrical substrate rotation holder for example, JP-A-2003-1555526 and JP-A-62-133065
- a plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- in-line type plasma apparatus for example, Japanese Patent No. 5824072; JP-A-2011-144450
- the control unit 700 controls the high-frequency power supply 101 based on the first voltage V1 of the first electrode 105a and the second voltage V2 of the second electrode 105b.
- the frequency of the high frequency at which is generated is adjusted.
- the control unit 700 adjusts the frequency of the high frequency generated by the high-frequency power supply 101 based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. It may be configured.
- the plasma intensity near the first electrode 105a can be detected by, for example, a photoelectric conversion device.
- the plasma intensity near the second electrode 105b can be detected by, for example, a photoelectric conversion device.
- the controller 700 may control the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b based on the plasma intensity near the first electrode 105a and the plasma intensity near the second electrode 105b. Can be configured so that the frequency of the high frequency generated by the high frequency power supply 101 becomes equal.
- FIG. 60 schematically illustrates a configuration of a plasma processing apparatus 1 according to a forty-sixth embodiment of the present invention.
- the plasma processing apparatus 1 according to the forty-sixth embodiment is a modification of the plasma processing apparatus 1 according to the twenty-third to twenty-ninth embodiments described with reference to FIGS.
- the plasma processing apparatus 1 according to the forty-sixth embodiment further includes at least one of a mechanism for moving up and down the first electrode 141 holding the substrate 112 and a mechanism for rotating the first electrode 141.
- the plasma processing apparatus 1 includes a driving mechanism 114 including both a mechanism for moving the first electrode 141 up and down and a mechanism for rotating the first electrode 141.
- a bellows 113 constituting a vacuum partition may be provided between the vacuum vessel 110 and the driving mechanism 114.
- FIG. 61 schematically illustrates a configuration of a plasma processing apparatus 1 according to a forty-seventh embodiment of the present invention.
- the plasma processing apparatus 1 according to the forty-seventh embodiment is a modification of the plasma processing apparatus 1 according to the thirty-fifth to forty-fifth embodiments described with reference to FIGS.
- the plasma processing apparatus 1 according to the forty-seventh embodiment further includes at least one of a mechanism for elevating and lowering the first electrode 141 holding the substrate 112 and a mechanism for rotating the first electrode 141.
- the plasma processing apparatus 1 includes a drive mechanism 114 including both a mechanism for moving the first electrode 141 up and down and a mechanism for rotating the first electrode 141.
- a bellows 113 constituting a vacuum partition may be provided between the vacuum vessel 110 and the driving mechanism 114.
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Abstract
Description
図3において、Rp-jXpは、真空容器110の内部空間にプラズマが発生している状態で第1平衡端子211および第2平衡端子212の側から第1電極106および第2電極111の側(本体10の側)を見たときのインピーダンス(ブロッキングキャパシタ104のリアクタンスを含む)を示している。Rpは抵抗成分、-Xpはリアクタンス成分を示している。また、図3において、Xは、バラン103の第1コイル221のインピーダンスのリアクタンス成分(インダクタンス成分)を示している。ISOは、X/Rpに対して相関を有する。
図14において、Rp-jXp(=Rp/2-jXp/2+Rp/2-jXp/2)は、真空容器110の内部空間にプラズマが発生している状態で第1平衡端子211および第2平衡端子212の側から第1電極105aおよび第2電極105bの側(本体10の側)を見たときのインピーダンス(ブロッキングキャパシタ104a及び104bのリアクタンスを含む)を示している。Rpは抵抗成分、-Xpはリアクタンス成分を示している。また、図14において、Xは、第1バラン103の第1コイル221のインピーダンスのリアクタンス成分(インダクタンス成分)を示している。ISOは、X/Rpに対して相関を有する。
Claims (35)
- インピーダンス整合回路と、
前記インピーダンス整合回路に接続された第1不平衡端子、接地された第2不平衡端子、第1平衡端子および第2平衡端子を有するバランと、
接地された真空容器と、
前記第1平衡端子に電気的に接続された第1電極と、
前記第2平衡端子に電気的に接続された第2電極と、
前記第1電極に印加される第1電圧と前記第2電極に印加される第2電圧との関係に影響を与える調整リアクタンスと、
前記インピーダンス整合回路を介して前記第1不平衡端子と前記第2不平衡端子との間に供給される高周波を発生する高周波電源と、
前記インピーダンス整合回路のインピーダンスおよび前記調整リアクタンスのリアクタンスを制御する制御部と、
を備えることを特徴とするプラズマ処理装置。 - 前記制御部は、前記第1平衡端子および前記第2平衡端子の側から前記第1電極および前記第2電極の側を見たときのインピーダンスに整合するように前記インピーダンス整合回路のインピーダンスを制御する、
ことを特徴とする請求項1に記載のプラズマ処理装置。 - 前記制御部は、プラズマの着火用のインピーダンスに前記インピーダンス整合回路のインピーダンスを制御してプラズマが着火された後に、前記第1平衡端子および前記第2平衡端子の側から前記第1電極および前記第2電極の側を見たときのインピーダンスに整合するように前記インピーダンス整合回路のインピーダンスを制御する、
ことを特徴とする請求項1に記載のプラズマ処理装置。 - 前記制御部は、前記第1電極の電圧が第1目標値になり、前記第2電極の電圧が第2目標値になるように、前記調整リアクタンスのリアクタンスを制御する、
ことを特徴とする請求項1乃至3のいずれか1項に記載のプラズマ処理装置。 - 前記制御部は、前記第1電極の電圧と前記第2電極の電圧との差分が目標差分値になるように、前記調整リアクタンスのリアクタンスを制御する、
ことを特徴とする請求項1乃至3のいずれか1項に記載のプラズマ処理装置。 - 前記制御部は、前記調整リアクタンスのリアクタンスを制御するための指令値を前記調整リアクタンスに供給し、前記調整リアクタンスは、前記指令値に従って自己のリアクタンスを変更する、
ことを特徴とする請求項1乃至5のいずれか1項に記載のプラズマ処理装置。 - 前記高周波電源は、前記高周波の周波数を変更可能であり、前記制御部は、前記周波数の変更によって前記関係が調整されるように、前記高周波電源の周波数を制御するための指令値を前記高周波電源に供給する、
ことを特徴とする請求項1乃至5のいずれか1項に記載のプラズマ処理装置。 - 前記第1電極は、第1部材を保持する第1保持面を有し、前記第2電極は、第2部材を保持する第2保持面を有し、前記第1保持面および前記第2保持面は、1つの平面に属している、
ことを特徴とする請求項1乃至7のいずれか1項に記載のプラズマ処理装置。 - 前記第1電極は、第1ターゲットを保持し、前記第2電極は、第2ターゲットを保持し、前記第1電極は前記第1ターゲットを介して処理対象の基板の側の空間と対向し、前記第2電極は前記第2ターゲットを介して前記空間と対向する、
ことを特徴とする請求項1乃至8のいずれか1項に記載のプラズマ処理装置。 - 前記調整リアクタンスは、(a)前記第1平衡端子と前記第1電極とを接続する第1経路に配置された可変リアクタンス、(b)前記第1電極と接地との間に配置された可変リアクタンス、(c)前記第2平衡端子と前記第2電極とを接続する第2経路に配置された可変リアクタンス、(d)前記第2電極と接地との間に配置された可変リアクタンス、および、(e)前記第1経路と前記第2経路とを接続する可変リアクタンス、の少なくとも1つを含む、
ことを特徴とする請求項9に記載のプラズマ処理装置。 - 前記調整リアクタンスは、前記第1平衡端子と前記第1電極とを接続する第1経路に配置された第1可変リアクタンス、および、前記第2平衡端子と前記第2電極とを接続する第2経路に配置された第2可変リアクタンス、の少なくとも1つを含む、
ことを特徴とする請求項9に記載のプラズマ処理装置。 - 前記第1可変リアクタンスは、可変インダクタを含み、
前記第2可変リアクタンスは、可変インダクタを含む、
ことを特徴とする請求項11に記載のプラズマ処理装置。 - 前記第1可変リアクタンスは、可変キャパシタを含み、
前記第2可変リアクタンスは、可変キャパシタを含む、
ことを特徴とする請求項11に記載のプラズマ処理装置。 - 前記調整リアクタンスは、前記第1電極と接地とを接続する第3経路に配置された第3可変リアクタンス、および、前記第2電極と接地とを接続する第4経路に配置された第4可変リアクタンス、の少なくとも1つを含む、
ことを特徴とする請求項9に記載のプラズマ処理装置。 - 前記第3可変リアクタンスは、可変キャパシタを含み、
前記第4可変リアクタンスは、可変キャパシタを含む、
ことを特徴とする請求項14に記載のプラズマ処理装置。 - 前記第3可変リアクタンスは、可変インダクタを含み、
前記第4可変リアクタンスは、可変インダクタを含む、
ことを特徴とする請求項14に記載のプラズマ処理装置。 - 前記調整リアクタンスは、前記第1平衡端子と前記第1電極とを接続する第1経路と前記第2平衡端子と前記第2電極とを接続する第2経路とを接続する可変リアクタンスを含む、
ことを特徴とする請求項9に記載のプラズマ処理装置。 - 前記可変リアクタンスは、可変インダクタを含む、
ことを特徴とする請求項17に記載のプラズマ処理装置。 - 前記可変リアクタンスは、可変キャパシタを含む、
ことを特徴とする請求項18に記載のプラズマ処理装置。 - 前記制御部は、前記第1電極の電圧と前記第2電極の電圧とに基づいて前記調整リアクタンスを制御する、
ことを特徴とする請求項1乃至19のいずれか1項に記載のプラズマ処理装置。 - 前記制御部は、前記第1電極の近傍におけるプラズマ強度と前記第2電極の近傍におけるプラズマ強度とに基づいて前記調整リアクタンスを制御する、
ことを特徴とする請求項1乃至19のいずれか1項に記載のプラズマ処理装置。 - 基板を保持する基板保持部と、
前記基板保持部を回転させる駆動機構と、
を更に備えることを特徴とする請求項1乃至21のいずれか1項に記載のプラズマ処理装置。 - 前記第1平衡端子および前記第2平衡端子の側から前記第1電極および前記第2電極の側を見たときの前記第1平衡端子と前記第2平衡端子との間の抵抗成分をRpとし、前記第1不平衡端子と前記第1平衡端子との間のインダクタンスをXとしたときに、1.5≦X/Rp≦5000を満たす、
ことを特徴とする請求項1乃至22のいずれか1項に記載のプラズマ処理装置。 - 前記バランは、前記第1不平衡端子と前記第1平衡端子とを接続する第1コイルと、前記第2不平衡端子と前記第2平衡端子とを接続する第2コイルとを有する、
ことを特徴とする請求項1乃至23のいずれか1項に記載のプラズマ処理装置。 - 前記バランは、前記第1平衡端子と前記第2平衡端子との間に接続された第3コイルおよび第4コイルを更に有し、前記第3コイルおよび前記第4コイルは、前記第3コイルと前記第4コイルとの接続ノードの電圧を前記第1平衡端子の電圧と前記第2平衡端子の電圧との中点とするように構成されている、
ことを特徴とする請求項24に記載のプラズマ処理装置。 - インピーダンス整合回路と、前記インピーダンス整合回路に接続された第1不平衡端子、接地された第2不平衡端子、第1平衡端子および第2平衡端子を有するバランと、接地された真空容器と、前記第1平衡端子に電気的に接続された第1電極と、前記第2平衡端子に電気的に接続された第2電極と、前記第1電極に印加される第1電圧と前記第2電極に印加される第2電圧との関係に影響を与える調整リアクタンスと、前記インピーダンス整合回路を介して前記第1不平衡端子と前記第2不平衡端子との間に供給される高周波を発生する高周波電源と、を備えるプラズマ処理装置において基板を処理するプラズマ処理方法であって、
前記第1平衡端子および前記第2平衡端子の側から前記第1電極および前記第2電極の側を見たときのインピーダンスに整合するように前記インピーダンス整合回路のインピーダンスを制御する整合工程と、
前記関係が調整されるように前記調整リアクタンスを調整する調整工程と、
前記調整工程の後に、前記基板を処理する処理工程と、
を含むことを特徴とするプラズマ処理方法。 - プラズマの着火用のインピーダンスに前記インピーダンス整合回路のインピーダンスが設定された状態でプラズマを着火する着火工程を更に含み、前記着火工程の後に前記整合工程が実施される、
ことを特徴とする請求項26に記載のプラズマ処理方法。 - 前記調整工程は、前記第1電極の電圧が第1目標値になり、前記第2電極の電圧が第2目標値になるように、前記調整リアクタンスのリアクタンスを制御することを含む、
ことを特徴とする請求項26又は27に記載のプラズマ処理方法。 - 前記調整工程は、前記第1電極の電圧と前記第2電極の電圧との差分が目標差分値になるように、前記調整リアクタンスのリアクタンスを制御することを含む、
ことを特徴とする請求項26又は27に記載のプラズマ処理方法。 - 前記調整工程は、前記調整リアクタンスのリアクタンスを制御するための指令値を前記調整リアクタンスに供給し、前記調整リアクタンスが前記指令値に従って自己のリアクタンスを変更することを含む、
ことを特徴とする請求項26乃至29のいずれか1項に記載のプラズマ処理方法。 - 前記高周波電源は、前記高周波の周波数を変更可能であり、前記調整工程は、前記周波数の変更によって前記関係が調整されるように、前記高周波電源の周波数を制御するための指令値を前記高周波電源に供給することを含む、
ことを特徴とする請求項26乃至29のいずれか1項に記載のプラズマ処理方法。 - 請求項26乃至29のいずれか1項に記載のプラズマ処理方法をコンピュータに実行させるためのプログラム。
- 請求項26乃至29のいずれか1項に記載のプラズマ処理方法をコンピュータに実行させるためのプログラムが格納されたメモリ媒体。
- インピーダンス整合回路と、
前記インピーダンス整合回路に接続された第1不平衡端子、接地された第2不平衡端子、第1平衡端子および第2平衡端子を有するバランと、
接地された真空容器と、
前記第1平衡端子に電気的に接続された第1電極と、
前記第2平衡端子に電気的に接続された第2電極と、
前記第1電極に印加される第1電圧と前記第2電極に印加される第2電圧との関係に影響を与える調整リアクタンスと、
前記インピーダンス整合回路を介して前記第1不平衡端子と前記第2不平衡端子との間に供給される高周波を発生する高周波電源と、
前記第1電極の電圧および前記第2電極の電圧を測定する測定部と、を備え、
前記測定部で測定された前記第1電極の電圧と前記第2電極の電圧に応じて、前記調整リアクタンスのリアクタンスが調整される、
ことを特徴とするプラズマ処理装置。 - 前記調整リアクタンスは、可変インダクタおよび可変キャパシタを含む、
ことを特徴とする請求項34に記載のプラズマ処理装置。
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5824072B2 (ja) | 1977-07-14 | 1983-05-19 | 日本放送協会 | カラ−画像信号合成回路 |
JPS62133065A (ja) | 1985-12-05 | 1987-06-16 | Anelva Corp | 誘電体バイアススパツタリング装置 |
JPH02156080A (ja) | 1988-12-09 | 1990-06-15 | Tokuda Seisakusho Ltd | スパッタ装置 |
JP2003155526A (ja) | 2001-11-21 | 2003-05-30 | Kowa Kinzoku Kk | 集塵ダストの処理方法 |
JP2008300322A (ja) * | 2007-06-04 | 2008-12-11 | Canon Anelva Corp | プラズマ処理装置、プラズマ処理方法、整合器、及び整合器の動作方法 |
JP2010045664A (ja) * | 2008-08-14 | 2010-02-25 | Tokyo Electron Ltd | マッチング装置、マッチング方法、プラズマ処理装置、及び記憶媒体 |
JP2011144450A (ja) | 2009-12-16 | 2011-07-28 | Canon Anelva Corp | スパッタリング装置及びスパッタリング方法 |
JP2012174682A (ja) * | 2011-02-18 | 2012-09-10 | Samsung Electronics Co Ltd | プラズマ処理装置 |
US20160289837A1 (en) * | 2012-06-19 | 2016-10-06 | Aixtron, Inc. | Apparatus and method for forming thin protective and optical layers on substrates |
JP6280677B1 (ja) * | 2017-06-27 | 2018-02-14 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
Family Cites Families (165)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025339A (en) | 1974-01-18 | 1977-05-24 | Coulter Information Systems, Inc. | Electrophotographic film, method of making the same and photoconductive coating used therewith |
US4014779A (en) | 1974-11-01 | 1977-03-29 | Coulter Information Systems, Inc. | Sputtering apparatus |
JPS53141937U (ja) | 1977-04-15 | 1978-11-09 | ||
US4170475A (en) | 1977-05-12 | 1979-10-09 | Coulter Information Systems, Inc. | High speed electrophotographic method |
US4131533A (en) | 1977-12-30 | 1978-12-26 | International Business Machines Corporation | RF sputtering apparatus having floating anode shield |
US4284490A (en) | 1978-09-28 | 1981-08-18 | Coulter Systems Corporation | R.F. Sputtering apparatus including multi-network power supply |
US4284489A (en) * | 1978-09-28 | 1981-08-18 | Coulter Systems Corporation | Power transfer network |
JPS57106216A (en) | 1980-12-24 | 1982-07-02 | Fujitsu Ltd | Switched capacitor filter |
US4584079A (en) | 1983-10-11 | 1986-04-22 | Honeywell Inc. | Step shape tailoring by phase angle variation RF bias sputtering |
US4887005A (en) | 1987-09-15 | 1989-12-12 | Rough J Kirkwood H | Multiple electrode plasma reactor power distribution system |
US5121067A (en) | 1987-10-06 | 1992-06-09 | Board Of Regents Of Leland Stanford University | Directional sampling bridge |
US4802080A (en) | 1988-03-18 | 1989-01-31 | American Telephone And Telegraph Company, At&T Information Systems | Power transfer circuit including a sympathetic resonator |
US4956582A (en) * | 1988-04-19 | 1990-09-11 | The Boeing Company | Low temperature plasma generator with minimal RF emissions |
US4871421A (en) | 1988-09-15 | 1989-10-03 | Lam Research Corporation | Split-phase driver for plasma etch system |
JPH02156082A (ja) | 1988-12-09 | 1990-06-15 | Tokuda Seisakusho Ltd | スパッタ装置 |
JPH02156083A (ja) | 1988-12-09 | 1990-06-15 | Tokuda Seisakusho Ltd | スパッタ装置 |
JPH02156081A (ja) * | 1988-12-09 | 1990-06-15 | Tokuda Seisakusho Ltd | スパッタ装置 |
JP3016821B2 (ja) | 1990-06-15 | 2000-03-06 | 東京エレクトロン株式会社 | プラズマ処理方法 |
US5316645A (en) * | 1990-08-07 | 1994-05-31 | Canon Kabushiki Kaisha | Plasma processing apparatus |
DE4106770C2 (de) | 1991-03-04 | 1996-10-17 | Leybold Ag | Verrichtung zum reaktiven Beschichten eines Substrats |
US5330578A (en) | 1991-03-12 | 1994-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Plasma treatment apparatus |
JPH04317325A (ja) | 1991-04-17 | 1992-11-09 | Nec Corp | 半導体装置の製造装置 |
US5415757A (en) * | 1991-11-26 | 1995-05-16 | Leybold Aktiengesellschaft | Apparatus for coating a substrate with electrically nonconductive coatings |
US5286297A (en) * | 1992-06-24 | 1994-02-15 | Texas Instruments Incorporated | Multi-electrode plasma processing apparatus |
JP3073360B2 (ja) * | 1993-03-31 | 2000-08-07 | 三菱重工業株式会社 | 高圧噴霧燃焼装置 |
US5698082A (en) * | 1993-08-04 | 1997-12-16 | Balzers Und Leybold | Method and apparatus for coating substrates in a vacuum chamber, with a system for the detection and suppression of undesirable arcing |
JP2642849B2 (ja) * | 1993-08-24 | 1997-08-20 | 株式会社フロンテック | 薄膜の製造方法および製造装置 |
AU2003195A (en) | 1994-06-21 | 1996-01-04 | Boc Group, Inc., The | Improved power distribution for multiple electrode plasma systems using quarter wavelength transmission lines |
US5830331A (en) * | 1994-09-23 | 1998-11-03 | Seagate Technology, Inc. | Apparatus and method for sputtering carbon |
DE19537212A1 (de) | 1994-10-06 | 1996-04-11 | Leybold Ag | Vorrichtung zum Beschichten von Substraten im Vakuum |
US5989999A (en) | 1994-11-14 | 1999-11-23 | Applied Materials, Inc. | Construction of a tantalum nitride film on a semiconductor wafer |
DE4441206C2 (de) * | 1994-11-19 | 1996-09-26 | Leybold Ag | Einrichtung für die Unterdrückung von Überschlägen in Kathoden-Zerstäubungseinrichtungen |
DE69637696D1 (de) | 1995-06-05 | 2008-11-13 | Musashino Kikai Co Ltd | Leistungsversorgung für multielektroden-entladung |
DE19540543A1 (de) * | 1995-10-31 | 1997-05-07 | Leybold Ag | Vorrichtung zum Beschichten eines Substrats mit Hilfe des Chemical-Vapor-Deposition-Verfahrens |
DE19540794A1 (de) * | 1995-11-02 | 1997-05-07 | Leybold Ag | Vorrichtung zum Beschichten eines Substrats von einem elektrisch leitfähigen Target |
US5830272A (en) * | 1995-11-07 | 1998-11-03 | Sputtered Films, Inc. | System for and method of providing a controlled deposition on wafers |
US6017221A (en) * | 1995-12-04 | 2000-01-25 | Flamm; Daniel L. | Process depending on plasma discharges sustained by inductive coupling |
US6252354B1 (en) * | 1996-11-04 | 2001-06-26 | Applied Materials, Inc. | RF tuning method for an RF plasma reactor using frequency servoing and power, voltage, current or DI/DT control |
DE19651811B4 (de) * | 1996-12-13 | 2006-08-31 | Unaxis Deutschland Holding Gmbh | Vorrichtung zum Belegen eines Substrats mit dünnen Schichten |
KR100252210B1 (ko) | 1996-12-24 | 2000-04-15 | 윤종용 | 반도체장치 제조용 건식식각장치 |
JP3598717B2 (ja) | 1997-03-19 | 2004-12-08 | 株式会社日立製作所 | プラズマ処理装置 |
DE19713637C2 (de) | 1997-04-02 | 1999-02-18 | Max Planck Gesellschaft | Teilchenmanipulierung |
GB9714142D0 (en) | 1997-07-05 | 1997-09-10 | Surface Tech Sys Ltd | An arrangement for the feeding of RF power to one or more antennae |
JP3356043B2 (ja) * | 1997-12-26 | 2002-12-09 | 三菱電機株式会社 | レーザ加工装置用距離検出器 |
US6273022B1 (en) | 1998-03-14 | 2001-08-14 | Applied Materials, Inc. | Distributed inductively-coupled plasma source |
JP3148177B2 (ja) | 1998-04-27 | 2001-03-19 | ニチメン電子工研株式会社 | プラズマ処理装置 |
JP2000030896A (ja) | 1998-07-10 | 2000-01-28 | Anelva Corp | プラズマ閉込め装置 |
US6046641A (en) | 1998-07-22 | 2000-04-04 | Eni Technologies, Inc. | Parallel HV MOSFET high power stable amplifier |
JP3166745B2 (ja) | 1998-12-25 | 2001-05-14 | 日本電気株式会社 | プラズマ処理装置ならびにプラズマ処理方法 |
US20020022836A1 (en) * | 1999-03-05 | 2002-02-21 | Gyrus Medical Limited | Electrosurgery system |
JP2000294543A (ja) | 1999-04-08 | 2000-10-20 | Hitachi Ltd | エッチング方法およびエッチング装置ならびに半導体装置の製造方法 |
EP1193746B1 (en) | 1999-05-06 | 2009-12-09 | Tokyo Electron Limited | Apparatus for plasma processing |
KR20020040875A (ko) | 1999-10-15 | 2002-05-30 | 로버트 엠. 포터 | 다중 전극 스퍼터링 시스템에서 기판 바이어싱을 위한방법 및 장치 |
US6818103B1 (en) | 1999-10-15 | 2004-11-16 | Advanced Energy Industries, Inc. | Method and apparatus for substrate biasing in multiple electrode sputtering systems |
JP2001122690A (ja) | 1999-10-26 | 2001-05-08 | Toyo Kohan Co Ltd | マイクロ波プラズマcvd装置及びダイヤモンド薄膜を形成する方法 |
DE60030757T2 (de) | 1999-11-16 | 2007-09-13 | Hydro-Quebec, Montreal | Verfahren und vorrichtung zum erleichtern der wiederzündung in einem lichtbogenofen |
JP4601104B2 (ja) | 1999-12-20 | 2010-12-22 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
JP2003533879A (ja) * | 2000-05-12 | 2003-11-11 | 東京エレクトロン株式会社 | プラズマ処理システムにおける電極の厚さを調整する方法 |
JP4656697B2 (ja) | 2000-06-16 | 2011-03-23 | キヤノンアネルバ株式会社 | 高周波スパッタリング装置 |
US7294563B2 (en) | 2000-08-10 | 2007-11-13 | Applied Materials, Inc. | Semiconductor on insulator vertical transistor fabrication and doping process |
JP3911555B2 (ja) | 2000-08-15 | 2007-05-09 | 独立行政法人産業技術総合研究所 | シリコン系薄膜の製造法 |
JP3807598B2 (ja) | 2001-07-23 | 2006-08-09 | 東京エレクトロン株式会社 | エッチング方法 |
DE10154229B4 (de) * | 2001-11-07 | 2004-08-05 | Applied Films Gmbh & Co. Kg | Einrichtung für die Regelung einer Plasmaimpedanz |
JP2003155556A (ja) | 2001-11-16 | 2003-05-30 | Canon Inc | ウエッジ形状膜の製造法 |
AU2002354459A1 (en) | 2001-12-10 | 2003-07-09 | Tokyo Electron Limited | High-frequency power source and its control method, and plasma processor |
US7298091B2 (en) | 2002-02-01 | 2007-11-20 | The Regents Of The University Of California | Matching network for RF plasma source |
US6703080B2 (en) * | 2002-05-20 | 2004-03-09 | Eni Technology, Inc. | Method and apparatus for VHF plasma processing with load mismatch reliability and stability |
DE10326135B4 (de) * | 2002-06-12 | 2014-12-24 | Ulvac, Inc. | Entladungsplasma-Bearbeitungsanlage |
US7445690B2 (en) | 2002-10-07 | 2008-11-04 | Tokyo Electron Limited | Plasma processing apparatus |
US7032536B2 (en) * | 2002-10-11 | 2006-04-25 | Sharp Kabushiki Kaisha | Thin film formation apparatus including engagement members for support during thermal expansion |
US7309998B2 (en) | 2002-12-02 | 2007-12-18 | Burns Lawrence M | Process monitor for monitoring an integrated circuit chip |
DE10306347A1 (de) | 2003-02-15 | 2004-08-26 | Hüttinger Elektronik GmbH & Co. KG | Leistungszufuhrregeleinheit |
US6876205B2 (en) * | 2003-06-06 | 2005-04-05 | Advanced Energy Industries, Inc. | Stored energy arc detection and arc reduction circuit |
US6972079B2 (en) | 2003-06-25 | 2005-12-06 | Advanced Energy Industries Inc. | Dual magnetron sputtering apparatus utilizing control means for delivering balanced power |
JP3575011B1 (ja) | 2003-07-04 | 2004-10-06 | 村田 正義 | プラズマ表面処理装置およびプラズマ表面処理方法 |
JP2005130376A (ja) | 2003-10-27 | 2005-05-19 | Sony Corp | バラン |
US7126346B2 (en) | 2003-12-18 | 2006-10-24 | Agilent Technologies, Inc. | Method, apparatus, and article of manufacture for manufacturing high frequency balanced circuits |
US7241361B2 (en) * | 2004-02-20 | 2007-07-10 | Fei Company | Magnetically enhanced, inductively coupled plasma source for a focused ion beam system |
JP4658506B2 (ja) | 2004-03-31 | 2011-03-23 | 浩史 滝川 | パルスアークプラズマ生成用電源回路及びパルスアークプラズマ処理装置 |
JP2005303257A (ja) | 2004-10-01 | 2005-10-27 | Masayoshi Murata | 高周波プラズマ生成用平衡不平衡変換装置と、該平衡不平衡変換装置により構成されたプラズマ表面処理装置およびプラズマ表面処理方法 |
JP4909523B2 (ja) | 2005-03-30 | 2012-04-04 | 株式会社ユーテック | スパッタリング装置及びスパッタリング方法 |
EP1720195B1 (de) * | 2005-05-06 | 2012-12-12 | HÜTTINGER Elektronik GmbH + Co. KG | Arcunterdrückungsanordnung |
JP2006336084A (ja) | 2005-06-03 | 2006-12-14 | Canon Inc | スパッタ成膜方法 |
CN2907173Y (zh) | 2006-02-24 | 2007-05-30 | 苏州大学 | 大面积并联高密度感应耦合等离子体源 |
US7517437B2 (en) | 2006-03-29 | 2009-04-14 | Applied Materials, Inc. | RF powered target for increasing deposition uniformity in sputtering systems |
US8932430B2 (en) * | 2011-05-06 | 2015-01-13 | Axcelis Technologies, Inc. | RF coupled plasma abatement system comprising an integrated power oscillator |
US10083817B1 (en) | 2006-08-22 | 2018-09-25 | Valery Godyak | Linear remote plasma source |
EP2087778A4 (en) | 2006-08-22 | 2010-11-17 | Mattson Tech Inc | INDUCTIVE PLASMA SOURCE WITH HIGH COUPLING EFFICIENCY |
JP4768699B2 (ja) | 2006-11-30 | 2011-09-07 | キヤノンアネルバ株式会社 | 電力導入装置及び成膜方法 |
US7777567B2 (en) * | 2007-01-25 | 2010-08-17 | Mks Instruments, Inc. | RF power amplifier stability network |
US8450635B2 (en) | 2007-03-30 | 2013-05-28 | Lam Research Corporation | Method and apparatus for inducing DC voltage on wafer-facing electrode |
US20170213734A9 (en) | 2007-03-30 | 2017-07-27 | Alexei Marakhtanov | Multifrequency capacitively coupled plasma etch chamber |
US20090075597A1 (en) * | 2007-09-18 | 2009-03-19 | Ofir Degani | Device, system, and method of low-noise amplifier |
TWI440405B (zh) | 2007-10-22 | 2014-06-01 | New Power Plasma Co Ltd | 電容式耦合電漿反應器 |
JP2009135448A (ja) * | 2007-11-01 | 2009-06-18 | Semiconductor Energy Lab Co Ltd | 半導体基板の作製方法及び半導体装置の作製方法 |
US8647585B2 (en) * | 2007-11-06 | 2014-02-11 | Creo Medical Limited | Microwave plasma sterilisation system and applicators therefor |
JP5371238B2 (ja) | 2007-12-20 | 2013-12-18 | 東京エレクトロン株式会社 | プラズマ処理装置およびプラズマ処理方法 |
CN101478857A (zh) | 2008-01-04 | 2009-07-08 | 北京北方微电子基地设备工艺研究中心有限责任公司 | 等离子体处理装置 |
JP5294669B2 (ja) | 2008-03-25 | 2013-09-18 | 東京エレクトロン株式会社 | プラズマ処理装置 |
JP2008294465A (ja) | 2008-07-31 | 2008-12-04 | Masayoshi Murata | 電流導入端子と、該電流導入端子を備えたプラズマ表面処理装置及びプラズマ表面処理方法 |
JP2008300873A (ja) | 2008-08-26 | 2008-12-11 | Masayoshi Murata | プラズマ表面処理方法及びプラズマ表面処理装置 |
US8438990B2 (en) | 2008-09-30 | 2013-05-14 | Applied Materials, Inc. | Multi-electrode PECVD source |
JP4547711B2 (ja) | 2008-10-10 | 2010-09-22 | 村田 正義 | 高周波プラズマcvd装置及び高周波プラズマcvd法 |
JP5305287B2 (ja) | 2008-10-30 | 2013-10-02 | 芝浦メカトロニクス株式会社 | 半導体製造装置 |
CN102203317A (zh) | 2008-11-12 | 2011-09-28 | 株式会社爱发科 | 电极电路、成膜装置、电极单元以及成膜方法 |
CN201425456Y (zh) | 2009-01-07 | 2010-03-17 | 钱潮轴承有限公司 | 一种水泵轴连轴承沟径测量检具 |
KR101617781B1 (ko) * | 2009-02-13 | 2016-05-03 | 어플라이드 머티어리얼스, 인코포레이티드 | 플라즈마 챔버 전극을 위한 rf 버스 및 rf 리턴 버스 |
JP2010255061A (ja) | 2009-04-27 | 2010-11-11 | Canon Anelva Corp | スパッタリング装置及びスパッタリング処理方法 |
JP2009302566A (ja) | 2009-09-16 | 2009-12-24 | Masayoshi Murata | トランス型平衡不平衡変換装置を備えたプラズマ表面処理装置 |
KR200476124Y1 (ko) * | 2009-09-29 | 2015-01-30 | 어플라이드 머티어리얼스, 인코포레이티드 | Rf전력공급 샤워헤드를 위한 편심 접지 복귀 |
US8755204B2 (en) | 2009-10-21 | 2014-06-17 | Lam Research Corporation | RF isolation for power circuitry |
US8501631B2 (en) | 2009-11-19 | 2013-08-06 | Lam Research Corporation | Plasma processing system control based on RF voltage |
EP2326151A1 (fr) | 2009-11-24 | 2011-05-25 | AGC Glass Europe | Procédé et dispositif de polarisation d'une électrode DBD |
JP5606063B2 (ja) * | 2009-12-28 | 2014-10-15 | 東京エレクトロン株式会社 | プラズマ処理装置 |
DE102010031568B4 (de) * | 2010-07-20 | 2014-12-11 | TRUMPF Hüttinger GmbH + Co. KG | Arclöschanordnung und Verfahren zum Löschen von Arcs |
CN102479657A (zh) | 2010-11-26 | 2012-05-30 | 沈阳拓荆科技有限公司 | 一种多段式匹配器 |
JP5642531B2 (ja) | 2010-12-22 | 2014-12-17 | 東京エレクトロン株式会社 | 基板処理装置及び基板処理方法 |
JP2012142332A (ja) | 2010-12-28 | 2012-07-26 | Canon Anelva Corp | 電子部品の製造方法 |
KR20130099151A (ko) | 2011-01-12 | 2013-09-05 | 니신 일렉트릭 컴패니 리미티드 | 플라스마 장치 |
WO2012134199A2 (ko) | 2011-03-30 | 2012-10-04 | 주성엔지니어링(주) | 플라즈마 발생 장치 및 기판 처리 장치 |
US20130017315A1 (en) | 2011-07-15 | 2013-01-17 | Applied Materials, Inc. | Methods and apparatus for controlling power distribution in substrate processing systems |
JP2013098177A (ja) | 2011-10-31 | 2013-05-20 | Semes Co Ltd | 基板処理装置及びインピーダンスマッチング方法 |
CN103091042B (zh) | 2011-11-07 | 2016-11-16 | 泰州市宏华冶金机械有限公司 | 重心测量装置及重心测量方法 |
CN104024471B (zh) | 2011-12-27 | 2016-03-16 | 佳能安内华股份有限公司 | 溅射装置 |
US9197196B2 (en) | 2012-02-22 | 2015-11-24 | Lam Research Corporation | State-based adjustment of power and frequency |
US10325759B2 (en) | 2012-02-22 | 2019-06-18 | Lam Research Corporation | Multiple control modes |
US10157729B2 (en) | 2012-02-22 | 2018-12-18 | Lam Research Corporation | Soft pulsing |
US9171699B2 (en) | 2012-02-22 | 2015-10-27 | Lam Research Corporation | Impedance-based adjustment of power and frequency |
JP5920453B2 (ja) | 2012-03-15 | 2016-05-18 | 東京エレクトロン株式会社 | 成膜装置 |
DE102012103938A1 (de) | 2012-05-04 | 2013-11-07 | Reinhausen Plasma Gmbh | Plasmamodul für eine Plasmaerzeugungsvorrichtung und Plasmaerzeugungsvorrichtung |
WO2014015899A1 (de) | 2012-07-24 | 2014-01-30 | Ev Group E. Thallner Gmbh | Verfahren und vorrichtung zum permanenten bonden von wafern |
JP2014049541A (ja) | 2012-08-30 | 2014-03-17 | Mitsubishi Heavy Ind Ltd | 薄膜製造装置及びその電極電圧調整方法 |
JP2014049667A (ja) | 2012-09-03 | 2014-03-17 | Tokyo Electron Ltd | プラズマ処理装置及びこれを備えた基板処理装置 |
US9779196B2 (en) | 2013-01-31 | 2017-10-03 | Lam Research Corporation | Segmenting a model within a plasma system |
US9620337B2 (en) | 2013-01-31 | 2017-04-11 | Lam Research Corporation | Determining a malfunctioning device in a plasma system |
KR102168064B1 (ko) | 2013-02-20 | 2020-10-20 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
DE112014001272B4 (de) | 2013-03-14 | 2023-03-30 | Canon Anelva Corporation | Schichtbildungsverfahren, Verfahren zum Herstellen einer lichtemittierenden Halbleitereinrichtung,lichtemittierende Halbleitereinrichtung und Beleuchtungseinrichtung |
JP2013139642A (ja) | 2013-04-02 | 2013-07-18 | Canon Anelva Corp | スパッタ成膜応用のためのプラズマ処理装置 |
JP6574547B2 (ja) * | 2013-12-12 | 2019-09-11 | 東京エレクトロン株式会社 | プラズマ処理装置及びプラズマ処理方法 |
KR101768928B1 (ko) | 2013-12-25 | 2017-08-17 | 캐논 아네르바 가부시키가이샤 | 기판 가공 방법 및 반도체 장치의 제조 방법 |
JP6316017B2 (ja) | 2014-02-13 | 2018-04-25 | Nissha株式会社 | 製品検出装置 |
US10081869B2 (en) | 2014-06-10 | 2018-09-25 | Lam Research Corporation | Defect control in RF plasma substrate processing systems using DC bias voltage during movement of substrates |
US10410889B2 (en) * | 2014-07-25 | 2019-09-10 | Applied Materials, Inc. | Systems and methods for electrical and magnetic uniformity and skew tuning in plasma processing reactors |
WO2016113707A1 (en) | 2015-01-16 | 2016-07-21 | PAVARIN, Daniele | A device intrinsically designed to resonate, suitable for rf power transfer as well as group including such device and usable for the production of plasma |
GB201502453D0 (en) | 2015-02-13 | 2015-04-01 | Spts Technologies Ltd | Plasma producing apparatus |
US10049862B2 (en) | 2015-04-17 | 2018-08-14 | Lam Research Corporation | Chamber with vertical support stem for symmetric conductance and RF delivery |
WO2016183388A1 (en) | 2015-05-12 | 2016-11-17 | Laguardia & Associates, Llc | Systems and methods for nuclear reactor vessel segmenting |
JP6539113B2 (ja) | 2015-05-28 | 2019-07-03 | 株式会社日立ハイテクノロジーズ | プラズマ処理装置およびプラズマ処理方法 |
US9960009B2 (en) | 2015-07-17 | 2018-05-01 | Lam Research Corporation | Methods and systems for determining a fault in a gas heater channel |
JP6678886B2 (ja) | 2016-05-26 | 2020-04-15 | 株式会社サムソン | 給水予熱装置の製造方法 |
US10403476B2 (en) | 2016-11-09 | 2019-09-03 | Lam Research Corporation | Active showerhead |
JP2018129224A (ja) * | 2017-02-09 | 2018-08-16 | 東京エレクトロン株式会社 | プラズマ処理装置 |
US20180274100A1 (en) * | 2017-03-24 | 2018-09-27 | Applied Materials, Inc. | Alternating between deposition and treatment of diamond-like carbon |
GB2562110A (en) * | 2017-05-05 | 2018-11-07 | Creo Medical Ltd | Apparatus for sterilising an instrument channel of a surgical scoping device |
CN110800377B (zh) * | 2017-06-27 | 2022-04-29 | 佳能安内华股份有限公司 | 等离子体处理装置 |
CN114666965A (zh) * | 2017-06-27 | 2022-06-24 | 佳能安内华股份有限公司 | 等离子体处理装置 |
WO2019004192A1 (ja) * | 2017-06-27 | 2019-01-03 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
JP6516951B1 (ja) | 2017-06-27 | 2019-05-22 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
JP6564556B2 (ja) * | 2017-06-27 | 2019-08-21 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
JP6309683B1 (ja) * | 2017-10-31 | 2018-04-11 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
WO2019241405A1 (en) * | 2018-06-14 | 2019-12-19 | Mks Instruments, Inc. | Radical output monitor for a remote plasma source and method of use |
EP4425529A3 (en) * | 2018-06-26 | 2024-12-11 | Canon Anelva Corporation | Plasma processing apparatus, plasma processing method, program, and memory medium |
US10354838B1 (en) | 2018-10-10 | 2019-07-16 | Lam Research Corporation | RF antenna producing a uniform near-field Poynting vector |
US11013075B2 (en) * | 2018-12-20 | 2021-05-18 | Nxp Usa, Inc. | RF apparatus with arc prevention using non-linear devices |
US11232931B2 (en) | 2019-10-21 | 2022-01-25 | Mks Instruments, Inc. | Intermodulation distortion mitigation using electronic variable capacitor |
-
2018
- 2018-12-21 EP EP24187058.3A patent/EP4425529A3/en active Pending
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- 2018-12-21 KR KR1020207036923A patent/KR102439024B1/ko active Active
-
2020
- 2020-09-17 US US17/023,675 patent/US11600466B2/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5824072B2 (ja) | 1977-07-14 | 1983-05-19 | 日本放送協会 | カラ−画像信号合成回路 |
JPS62133065A (ja) | 1985-12-05 | 1987-06-16 | Anelva Corp | 誘電体バイアススパツタリング装置 |
JPH02156080A (ja) | 1988-12-09 | 1990-06-15 | Tokuda Seisakusho Ltd | スパッタ装置 |
JP2003155526A (ja) | 2001-11-21 | 2003-05-30 | Kowa Kinzoku Kk | 集塵ダストの処理方法 |
JP2008300322A (ja) * | 2007-06-04 | 2008-12-11 | Canon Anelva Corp | プラズマ処理装置、プラズマ処理方法、整合器、及び整合器の動作方法 |
JP2010045664A (ja) * | 2008-08-14 | 2010-02-25 | Tokyo Electron Ltd | マッチング装置、マッチング方法、プラズマ処理装置、及び記憶媒体 |
JP2011144450A (ja) | 2009-12-16 | 2011-07-28 | Canon Anelva Corp | スパッタリング装置及びスパッタリング方法 |
JP2012174682A (ja) * | 2011-02-18 | 2012-09-10 | Samsung Electronics Co Ltd | プラズマ処理装置 |
US20160289837A1 (en) * | 2012-06-19 | 2016-10-06 | Aixtron, Inc. | Apparatus and method for forming thin protective and optical layers on substrates |
JP6280677B1 (ja) * | 2017-06-27 | 2018-02-14 | キヤノンアネルバ株式会社 | プラズマ処理装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3817517A4 |
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PL3817517T3 (pl) | 2024-10-28 |
EP3817517A4 (en) | 2022-03-16 |
JP6688440B1 (ja) | 2020-04-28 |
EP4425529A3 (en) | 2024-12-11 |
EP4421844A2 (en) | 2024-08-28 |
SG11202009122YA (en) | 2020-10-29 |
FI3817517T3 (fi) | 2024-09-03 |
KR102439024B1 (ko) | 2022-09-02 |
EP4425529A2 (en) | 2024-09-04 |
JPWO2020003557A1 (ja) | 2020-07-02 |
EP3817517A1 (en) | 2021-05-05 |
EP3817517B1 (en) | 2024-08-14 |
US11600466B2 (en) | 2023-03-07 |
US20210005429A1 (en) | 2021-01-07 |
EP4421844A3 (en) | 2024-11-20 |
KR20210012000A (ko) | 2021-02-02 |
CN112292911A (zh) | 2021-01-29 |
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