JP6767844B2 - 成膜装置及び成膜方法 - Google Patents
成膜装置及び成膜方法 Download PDFInfo
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- JP6767844B2 JP6767844B2 JP2016220589A JP2016220589A JP6767844B2 JP 6767844 B2 JP6767844 B2 JP 6767844B2 JP 2016220589 A JP2016220589 A JP 2016220589A JP 2016220589 A JP2016220589 A JP 2016220589A JP 6767844 B2 JP6767844 B2 JP 6767844B2
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- gas supply
- rotary table
- raw material
- side auxiliary
- gas
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- 238000000034 method Methods 0.000 title claims description 49
- 230000015572 biosynthetic process Effects 0.000 title description 11
- 239000007789 gas Substances 0.000 claims description 752
- 239000002994 raw material Substances 0.000 claims description 200
- 238000012545 processing Methods 0.000 claims description 133
- 230000002093 peripheral effect Effects 0.000 claims description 129
- 239000000758 substrate Substances 0.000 claims description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 description 138
- 235000012431 wafers Nutrition 0.000 description 74
- 238000000926 separation method Methods 0.000 description 37
- 238000004088 simulation Methods 0.000 description 34
- 239000012495 reaction gas Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 20
- 238000009826 distribution Methods 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 238000004140 cleaning Methods 0.000 description 18
- 238000004458 analytical method Methods 0.000 description 15
- 230000001965 increasing effect Effects 0.000 description 15
- 229910052814 silicon oxide Inorganic materials 0.000 description 14
- 238000010926 purge Methods 0.000 description 13
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 11
- 238000000231 atomic layer deposition Methods 0.000 description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 239000007795 chemical reaction product Substances 0.000 description 8
- 230000001590 oxidative effect Effects 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- 238000002407 reforming Methods 0.000 description 5
- 229910000077 silane Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000002052 molecular layer Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000009832 plasma treatment Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 239000011800 void material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
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- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 238000007789 sealing Methods 0.000 description 3
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- 238000001179 sorption measurement Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003642 reactive oxygen metabolite Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- GIRKRMUMWJFNRI-UHFFFAOYSA-N tris(dimethylamino)silicon Chemical compound CN(C)[Si](N(C)C)N(C)C GIRKRMUMWJFNRI-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- 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
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- C—CHEMISTRY; METALLURGY
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- 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
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- C23C16/24—Deposition of silicon only
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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
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- C23C16/40—Oxides
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- C—CHEMISTRY; METALLURGY
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- 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
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- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45548—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction
- C23C16/45551—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction for relative movement of the substrate and the gas injectors or half-reaction reactor compartments
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- C—CHEMISTRY; METALLURGY
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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- C23C16/45578—Elongated nozzles, tubes with holes
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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
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- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
- C23C16/507—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges using external electrodes, e.g. in tunnel type reactors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02186—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing titanium, e.g. TiO2
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
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- H01L21/02107—Forming insulating materials on a substrate
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Description
該処理室内に設けられ、基板を上面に周方向に沿って載置可能な基板載置領域を有する回転テーブルと、
前記基板の全体を覆うことができるように該回転テーブルの半径方向に延在し、該回転テーブルの上方に該回転テーブルと第1の間隔を有して設けられた原料ガス供給手段と、
前記回転テーブルの前記半径方向の軸側の所定領域を覆うように、前記回転テーブルと前記第1の間隔よりも広い第2の間隔を有して設けられた軸側補助ガス供給手段と、
前記回転テーブルの前記半径方向の外周側の所定領域を覆うように、前記回転テーブルと前記第2の間隔と等しいかそれよりも広い第3の間隔を有して設けられた外周側補助ガス供給手段と、を有し、
前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、シャワーヘッドとして一体的に構成されており、
前記シャワーヘッドは、前記回転テーブルの前記周方向の一部を扇形に覆う形状を有する。
まず、本発明の実施形態に係る成膜装置について説明する。図1から図3までを参照すると、成膜装置は、ほぼ円形の平面形状を有する扁平な真空容器1と、真空容器1内に設けられ、真空容器1の中心に回転中心を有する回転テーブル2と、を備えている。真空容器1は、内部に収容したウェハの表面上に成膜処理を行うための処理室である。真空容器1は、有底の円筒形状を有する容器本体12と、容器本体12の上面に対して、例えばOリングなどのシール部材13(図1)を介して気密に着脱可能に配置される天板11とを有している。
図13は、本発明の実施形態に係るプラズマ処理装置のプラズマ発生部の一例の分解斜視図である。
図12及び図13に示すように、筐体90の上方側には、当該筐体90の内部形状に概略沿うように形成された導電性の板状体である金属板例えば銅などからなる、接地されたファラデーシールド95が収納されている。このファラデーシールド95は、筐体90の底面に沿うように水平に係止された水平面95aと、この水平面95aの外終端から周方向に亘って上方側に伸びる垂直面95bと、を備えており、平面視で例えば概略六角形となるように構成されていても良い。
次に、本発明の実施形態に係る成膜方法について、上述の成膜装置を用いて実施される場合を例に挙げ説明する。このため、これまでに参照した図面を適宜参照する。
次に、本発明の実施形態に係る成膜装置及び成膜方法を実施したシミュレーション実験の結果について説明する。なお、理解の容易のため、上述の実施形態で説明した構成要素に対応する構成要素には同一の参照番号を付し、その説明を省略する。実施例に用いた成膜装置は、上述の実施形態で説明した成膜装置と同様の構成を有し、原料ガス供給部32、軸側補助ガス供給部33及び外周側補助ガス供給部34の総てを備えたシャワーヘッド30を有する成膜装置である。原料ガス供給部32と回転テーブル2との間の間隔d1は1.5mm、軸側補助ガス供給部33及び外周側補助ガス供給部34と回転テーブル2との間の間隔d3、d2は3mmに設定されている。また、シャワーヘッド30の底面板31も高底面領域31bと回転テーブル2との間隔も3mmに設定されている。
図24は、本実施形態に係る成膜装置を用いて成膜処理を実施した実施例1の実施結果を示した図である。実施例1においては、原料ガス供給部32からの原料ガスである有機シランガスの流量を10sccmで一定とし、軸側補助ガス供給部33からのArガスの流量を種々変化させた。また、外周側補助ガス供給部34からは、ガスの供給を行わなかった。
2 回転テーブル
24 凹部
30 シャワーヘッド
31 底面板
32 原料ガス供給部
33 軸側補助ガス供給部
34 外周側補助ガス供給部
32a〜34a ガス供給路
39 ガス導入口
39a ガス導入路
81 プラズマ発生部
120〜123 流量制御器
130〜133 ガス供給源
P1〜P3 処理領域
W ウェハ
Claims (12)
- 処理室と、
該処理室内に設けられ、基板を上面に周方向に沿って載置可能な基板載置領域を有する回転テーブルと、
前記基板の全体を覆うことができるように該回転テーブルの半径方向に延在し、該回転テーブルの上方に該回転テーブルと第1の間隔を有して設けられた原料ガス供給手段と、
前記回転テーブルの前記半径方向の軸側の所定領域を覆うように、前記回転テーブルと前記第1の間隔よりも広い第2の間隔を有して設けられた軸側補助ガス供給手段と、
前記回転テーブルの前記半径方向の外周側の所定領域を覆うように、前記回転テーブルと前記第2の間隔と等しいかそれよりも広い第3の間隔を有して設けられた外周側補助ガス供給手段と、を有し、
前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、シャワーヘッドとして一体的に構成されており、
前記シャワーヘッドは、前記回転テーブルの前記周方向の一部を扇形に覆う形状を有する成膜装置。 - 前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、前記シャワーヘッドの底面に、前記回転テーブルの前記半径方向に沿って直線状に配列された複数のガス吐出孔を各々有する請求項1に記載の成膜装置。
- 前記複数のガス吐出孔は、前記シャワーヘッドの前記底面内で、前記回転テーブルの回転方向の上流側の所定位置に配置された請求項2に記載の成膜装置。
- 前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、各々独立して流量及びガス組成を変更可能なように、個別の供給ラインとして構成されている請求項1乃至3のいずれか一項に記載の成膜装置。
- 前記原料ガス供給手段は少なくとも原料ガス供給源に接続され、
前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は少なくとも不活性ガス供給源に接続された請求項1乃至4のいずれか一項に記載の成膜装置。 - 前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、前記扇形の左右対称の中心よりも前記回転テーブルの回転方向の上流側寄りに設けられている請求項1乃至5のいずれか一項に記載の成膜装置。
- 処理室と、
該処理室内に設けられ、基板を上面に周方向に沿って載置可能な基板載置領域を有する回転テーブルと、
前記回転テーブルの周方向の一部に設けられた原料ガス供給領域において、該回転テーブルの半径方向に延在し、該回転テーブルの半径全体を覆うように該回転テーブルの上方に該回転テーブルと第1の間隔を有して設けられた原料ガス供給手段と、
前記原料ガス供給領域において、前記回転テーブルの前記半径方向の軸側の所定領域を覆うように、前記回転テーブルと前記第1の間隔よりも広い第2の間隔を有して設けられた軸側補助ガス供給手段と、
前記原料ガス供給領域において、前記回転テーブルの前記半径方向の外周側の所定領域を覆うように、前記回転テーブルと前記第2の間隔と等しいかそれよりも広い第3の間隔を有して設けられた外周側補助ガス供給手段と、を有し、
前記原料ガス供給手段から供給される原料ガスはシリコン含有ガスであり、
前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段から供給される補助ガスは、膜厚を調整するための膜厚調整用ガスである成膜装置。 - 処理室内に設けられた回転テーブル上に載置された基板に、前記回転テーブルの周方向の一部に設けられた原料ガス供給領域において、前記回転テーブルの上方で前記回転テーブルの半径全体を覆うように、前記回転テーブルと第1の間隔を有して設けられた原料ガス供給手段から、前記回転テーブルを回転させながら原料ガスを供給する工程と、
前記原料ガス供給領域において、前記回転テーブルの軸側の所定領域を覆うように、前記回転テーブルと前記第1の間隔よりも広い第2の間隔を有して設けられた軸側補助ガス供給手段から、前記回転テーブルを回転させながら膜厚を調整するための所定の軸側補助ガスを供給する工程と、
前記原料ガス供給領域において、前記回転テーブルの外周側の所定領域を覆うように、前記回転テーブルと前記第2の間隔と等しいかそれよりも広い第3の間隔を有して設けられた外周側補助ガス供給手段から、前記回転テーブルを回転させながら膜厚を調整するための所定の外周側補助ガスを供給する工程と、を有し、
前記原料ガスを供給する工程、前記軸側補助ガスを供給する工程及び前記外周側補助ガスを供給する工程は、同時に継続的に行われ、
前記原料ガス供給手段から供給される原料ガスはシリコン含有ガスであり、
前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段から供給される前記軸側補助ガス及び前記外周側補助ガスは、不活性ガスを含むガスである成膜方法。 - 処理室内に設けられた回転テーブル上に載置された基板に、前記回転テーブルの周方向の一部に設けられた原料ガス供給領域において、前記回転テーブルの上方で前記回転テーブルの半径全体を覆うように、前記回転テーブルと第1の間隔を有して設けられた原料ガス供給手段から、前記回転テーブルを回転させながら原料ガスを供給する工程と、
前記原料ガス供給領域において、前記回転テーブルの軸側の所定領域を覆うように、前記回転テーブルと前記第1の間隔よりも広い第2の間隔を有して設けられた軸側補助ガス供給手段から、前記回転テーブルを回転させながら膜厚を調整するための所定の軸側補助ガスを供給する工程と、
前記原料ガス供給領域において、前記回転テーブルの外周側の所定領域を覆うように、前記回転テーブルと前記第2の間隔と等しいかそれよりも広い第3の間隔を有して設けられた外周側補助ガス供給手段から、前記回転テーブルを回転させながら膜厚を調整するための所定の外周側補助ガスを供給する工程と、を有し、
前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、前記原料ガスの濃度を低下させるように前記軸側補助ガス及び前記外周側補助ガスを供給する成膜方法。 - 前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、シャワーヘッドとして一体的に構成され、前記原料ガス、前記軸側補助ガス及び前記外周側補助ガスは、前記シャワーヘッドの底面から供給される請求項8又は9に記載の成膜方法。
- 前記原料ガスは、30sccm以下の流量で供給される請求項8乃至10のいずれか一項に記載の成膜方法。
- 前記シャワーヘッドは、前記回転テーブルの前記周方向の一部を扇形に覆う形状を有し、
前記原料ガス供給手段、前記軸側補助ガス供給手段及び前記外周側補助ガス供給手段は、前記扇形の左右対称の中心よりも前記回転テーブルの回転方向の上流側寄りに設けられている請求項10に記載の成膜方法。
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WO2019226957A1 (en) * | 2018-05-24 | 2019-11-28 | Tokyo Electron Limited | Multiple zone gas injection for control of gas phase radicals |
JP6906490B2 (ja) * | 2018-09-14 | 2021-07-21 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法およびプログラム |
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