WO2024057613A1 - 電気的接続装置 - Google Patents
電気的接続装置 Download PDFInfo
- Publication number
- WO2024057613A1 WO2024057613A1 PCT/JP2023/017750 JP2023017750W WO2024057613A1 WO 2024057613 A1 WO2024057613 A1 WO 2024057613A1 JP 2023017750 W JP2023017750 W JP 2023017750W WO 2024057613 A1 WO2024057613 A1 WO 2024057613A1
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- WIPO (PCT)
- Prior art keywords
- probe
- guide plate
- offset
- electrical connection
- connection device
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07314—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card the body of the probe being perpendicular to test object, e.g. bed of nails or probe with bump contacts on a rigid support
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06733—Geometry aspects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06755—Material aspects
- G01R1/06761—Material aspects related to layers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
Definitions
- the present invention relates to an electrical connection device used to measure the electrical characteristics of a test object.
- an electrical connection device In order to measure the electrical characteristics of a test object such as an integrated circuit without separating it from the wafer, an electrical connection device is used that has a probe that contacts the test object and a probe head that holds the probe. (See Reference 1).
- a probe head having a plurality of guide plates with hollow portions provided between the guide plates is used in an electrical connection device. The probe passes through a guide hole formed in the guide plate and is held by the probe head in a curved state in the hollow portion.
- a probe In the electrical connection device, a probe is placed at a position corresponding to the test pad of the object to be tested. Therefore, as the distance between the test pads becomes narrower due to the miniaturization of the object to be inspected, the distance between the probes also becomes narrower. If the arrangement interval of the probes is narrowed, a problem arises in that when the probes are bent in the hollow part inside the probe head during inspection of the object to be inspected, adjacent probes come into contact with each other and a short circuit occurs between the probes.
- an object of the present invention is to provide an electrical connection device that can suppress short circuits between probes.
- an electrical connection device includes a probe and a probe head having a first guide plate and a second guide plate each having a guide hole formed therein.
- the probe head has a configuration in which a first guide plate and a second guide plate are spaced apart from each other along the normal direction of the main surface of the first guide plate.
- the positions of the guide hole of the first guide plate and the guide hole of the second guide plate through which the same probe passes are shifted parallel to the main surface of the first guide plate.
- the direction in which the guide holes are deviated obliquely intersects with the arrangement direction of the test pads.
- FIG. 1 is a schematic diagram showing the configuration of an electrical connection device according to a first embodiment of the present invention.
- FIG. 2 is a schematic diagram showing the relationship between the cross-sectional shape of the probe of the electrical connection device according to the first embodiment of the present invention and the offset direction.
- FIG. 3 is a schematic diagram showing the relationship between the shape of the guide hole and the offset direction of the electrical connection device according to the first embodiment of the present invention.
- FIG. 4 is a schematic diagram showing an example of the arrangement of test pads on an object to be tested.
- FIG. 5 is a schematic diagram showing the spacing between probes in a probe head of a comparative example.
- FIG. 6 is a schematic diagram showing the spacing between probes in the probe head of the electrical connection device according to the first embodiment of the present invention.
- FIG. 1 is a schematic diagram showing the configuration of an electrical connection device according to a first embodiment of the present invention.
- FIG. 2 is a schematic diagram showing the relationship between the cross-sectional shape of the probe of the electrical connection device
- FIG. 7 is a schematic diagram showing an example of the shape of the guide hole of the electrical connection device according to the first embodiment of the present invention.
- FIG. 8 is a schematic diagram showing another example of the shape of the guide hole of the electrical connection device according to the first embodiment of the present invention.
- FIG. 9A is a schematic cross-sectional view showing an example of the shape of the opening of the guide hole of the electrical connection device according to the first embodiment of the present invention.
- FIG. 9B is a schematic cross-sectional view showing another example of the shape of the opening of the guide hole of the electrical connection device according to the first embodiment of the present invention.
- FIG. 10 is a schematic diagram showing an example of the arrangement of test pads on an object to be tested.
- FIG. 11 is a schematic diagram showing an example of the arrangement of guide holes of the electrical connection device according to the first embodiment of the present invention, which corresponds to the arrangement of the test pads shown in FIG.
- FIG. 12 is a schematic diagram showing the configuration of an electrical connection device according to the second embodiment of the present invention.
- FIG. 13 is a schematic diagram for explaining an example in which probes come into contact with each other.
- FIG. 14 is a schematic cross-sectional view showing a covering material placed on a probe of an electrical connection device according to a second embodiment of the present invention.
- the electrical connection device 1 includes a plurality of probes 10 and a probe head 20 that holds the probes 10, as shown in FIG.
- the probe 10 comes into contact with the object to be inspected when testing the object.
- one end of the probe 10 that contacts the object to be inspected will be referred to as the "tip part 11", and the other end will be referred to as the "base end part 12".
- the tip portion 11 comes into contact with, for example, a test pad placed on the object to be tested.
- the base end portion 12 is connected to, for example, an electrode placed on a printed circuit board (not shown).
- the electrodes of the printed circuit board are electrically connected to an inspection device such as a tester. An electrical signal is propagated between the inspection device and the object to be inspected via the electrical connection device 1 .
- the probe head 20 has a first guide plate 211, a second guide plate 212, and a third guide plate 213.
- the first guide plate 211, the second guide plate 212, and the third guide plate 213 are spaced apart from each other and arranged in multiple stages along the normal direction of the main surface of the first guide plate 211.
- a region near the base end 12 of the probe 10 passes through the first guide plate 211 .
- a region of the probe 10 near the tip 11 passes through the third guide plate 213 .
- the second guide plate 212 is arranged between the first guide plate 211 and the third guide plate 213, and the intermediate portion of the probe 10 between the distal end 11 and the base end 12 passes through the second guide plate 212.
- each of the first guide plate 211, the second guide plate 212, and the third guide plate 213 is not limited, they will be referred to as the guide plate 21.
- a guide hole (not shown in FIG. 1) is formed in the portion of the guide plate 21 through which the probe 10 passes.
- the probe head 20 holds the probes 10 that have passed through guide holes formed in the guide plate 21, respectively.
- the first guide plate 211, the second guide plate 212, and the third guide plate 213 may be referred to as a "top guide plate,” a “middle guide plate,” and a "bottom guide plate,” respectively.
- the probe head 20 includes a first hollow part 221 disposed between a first guide plate 211 and a second guide plate 212, and a second hollow part disposed between a second guide plate 212 and a third guide plate 213. It has 222.
- a first hollow portion 221 is formed by arranging a spacer 23 between the outer edge of the first guide plate 211 and the outer edge of the second guide plate 212. Further, a recessed portion is provided in the main surface of the third guide plate 213 facing the second guide plate 212 to form a second hollow portion 222 . Note that it goes without saying that the method for configuring the first hollow portion 221 and the second hollow portion 222 is not limited to these methods.
- the X direction, Y direction, and Z direction are defined as shown in FIG.
- the X direction is the horizontal direction of the paper
- the Y direction is the depth direction of the paper
- the Z direction is the vertical direction of the paper.
- the direction in which the first guide plate 211 is positioned when viewed from the third guide plate 213 is defined as an upward direction
- the direction in which the third guide plate 213 is positioned as viewed from the first guide plate 211 is defined as a downward direction.
- the main surface facing upward is also referred to as an upper surface
- the main surface facing downward is also referred to as a lower surface.
- the surface normal direction of the upper and lower surfaces of the guide plate 21 is the Z direction.
- the guide hole penetrates the guide plate 21 from the upper surface to the lower surface.
- the upper and lower surfaces of the guide plate 21 are parallel to the XY plane defined by the X direction and the Y direction.
- the positions of the guide hole of the first guide plate 211 and the guide hole of the second guide plate 212, through which the same probe 10 passes, are 1 guide plate 211 and are arranged parallel to and offset from each other.
- an arrangement in which the positions of the guide holes are shifted parallel to the main surface of the first guide plate 211 will be referred to as an "offset arrangement.”
- the direction in which the position of the guide hole 220 of the first guide plate 211 and the position of the guide hole 220 of the second guide plate 212 in the offset arrangement are shifted is referred to as an "offset direction.”
- the offset direction is parallel to the X direction.
- the probe 10 an elastic material having electrical conductivity is used. Since the probe 10 has elasticity, the guide hole of the first guide plate 211 and the guide hole of the second guide plate 212 are arranged offset, so that the probe 10 is provided between the first guide plate 211 and the second guide plate 212. Inside the first hollow portion 221, the probe 10 is curved due to elastic deformation. In other words, the probe head 20 holds the probe 10 in a curved state.
- each of the probes 10 is curved uniformly so that the arcuate outer side thereof protrudes in the offset direction.
- the probe 10 extends in the offset direction when viewed from the Z direction.
- the probe head 20 controls the direction in which the probe 10 curves due to the offset arrangement.
- the surface of the curved probe 10 facing in the offset direction will also be referred to as an "offset surface.”
- the surface of the probe 10 that faces the offset surface is also referred to as the "opposing surface.”
- the probe 10 Since the probe 10 is held in a curved state by the probe head 20, when the distal end portion 11 of the probe 10 comes into contact with the object to be inspected while the position of the proximal end portion 12 is fixed, the first hollow portion 221 The probe 10 curves further. That is, during the inspection of an object to be inspected, the probe 10 buckles due to flexural deformation between the first guide plate 211 and the second guide plate 212.
- the probe 10 From a non-contact state in which the probe 10 is not in contact with the object to be inspected, to a contact state in which the probe 10 is in contact with the object to be inspected, the probe 10 is further curved, so that the probe 10 comes into contact with the object to be inspected with a predetermined pressure. . Therefore, the offset arrangement allows the probe 10 to stably measure the electrical characteristics of the object to be inspected. Since each of the probes 10 passes through the second guide plate 212, adjacent probes 10 are prevented from coming into contact with each other in the first hollow portion 221.
- the positions of the guide holes of the second guide plate 212 and the guide holes of the third guide plate 213 substantially match when viewed from the Z direction. Therefore, the probe 10 extends linearly in the normal direction of the lower surface of the third guide plate 213 inside the second hollow portion 222 provided between the second guide plate 212 and the third guide plate 213. . As a result, the tip of the probe 10 stably contacts the test pad of the object to be tested.
- a cross section perpendicular to the central axis direction of the probe 10 (hereinafter simply referred to as a "cross section”) is a linear side perpendicular to the offset direction.
- the shape includes the following.
- the cross section of the probe 10 may be rectangular.
- the side perpendicular to the offset direction F be the long side and the side parallel to the offset direction be the short side.
- the guide hole formed in the guide plate 21 has a shape (hereinafter simply referred to as "shape") of the guide hole as seen from the Z direction in order to suppress positional deviation of the probe 10 in the XY plane inside the guide hole. is preferably similar to the cross-sectional shape of the probe 10. Therefore, the guide hole through which the probe 10 having a side perpendicular to the offset direction F also includes a straight side perpendicular to the offset direction F.
- the longitudinal direction of the guide hole shape is perpendicular to the offset direction F.
- the shape of the guide hole 220 through which the probe 10 shown in FIG. 2 passes may be rectangular as shown in FIG. 3. As shown in FIG. 3, the long side direction of the guide hole 220 when viewed from the Z direction is perpendicular to the offset direction F.
- the probe 10 has the elasticity to return to the shape before contacting the test object when the probe 10 and the test object come into a non-contact state.
- Tungsten (W) or the like is used as the material of the probe 10.
- the material of the probe 10 may be a copper (Cu) alloy, a palladium (Pd) alloy, a nickel (Ni) alloy, a W alloy, or the like.
- a ceramic material or the like is preferably used as the material for the guide plate 21 of the probe head 20.
- silicon nitride ceramic or the like may be used as the material of the guide plate 21.
- the offset direction when viewed from the Z direction, the offset direction diagonally intersects with the arrangement direction of the test pads of the test object 2.
- the distance between adjacent probes 10 in the curved direction offset direction
- the angle between the arrangement direction of the test pads and the offset direction is, for example, 45 degrees.
- the spacing between the probes 10 will be considered in the case where the plurality of test pads 200 of the test object 2 are arranged in a matrix when viewed from the Z direction, as shown in FIG.
- the test pads 200 are arranged in a matrix along a first direction M1 and a second direction M2 perpendicular to the first direction M1 when viewed from the Z direction.
- a plane defined by the first direction M1 and the second direction M2 is parallel to the XY plane.
- the arrangement interval of the test pads 200 in the first direction M1 is a pitch P. Note that the arrangement interval of the test pads 200 is the distance between the centers of the test pads 200.
- FIG. 5 shows the distance W1 between the probes 10 for a comparative example probe head 20A in which the offset direction F is the first direction M1.
- the interval between the probes 10 is the distance between the centers of the probes 10 along the offset direction F (the same applies below).
- the interval W1 of the probes 10 held by the probe head 20A of the comparative example along the offset direction F is approximately the same as the pitch P, which is the arrangement interval of the test pads 200 in the first direction M1. be.
- FIG. 6 shows the distance W2 between the probes 10 for the probe head 20 of the electrical connection device 1.
- the offset direction F of the probe head 20 obliquely intersects both the first direction M1 and the second direction M2, which are the directions in which the test pads 200 are arranged.
- the interval W2 of the probes 10 along the offset direction F can be made wider than the pitch P of the test pads 200.
- the curve direction of the adjacent probes 10 is better than in the comparative example in which the arrangement direction of the test pads 200 and the offset direction F are the same.
- Wide spacing In other words, according to the electrical connection device 1 in which the offset direction crosses diagonally with respect to the arrangement direction of the test pads 200, the probe 10 can be arranged along the offset direction F without increasing the arrangement interval of the test pads 200. You can widen the spacing. As described above, according to the probe head 20 that can widen the distance between the probes 10 in the offset direction F, the distance between the probes 10 becomes narrower when the probes 10 are buckled, which prevents the probes 10 from coming into contact with each other. It can be suppressed.
- the arrangement direction of the test pads 200 and the offset direction diagonally intersect. Therefore, according to the electrical connection device 1, when the probes 10 are bent, adjacent probes 10 are prevented from coming into contact with each other. As a result, it is possible to prevent short circuits between the probes 10 (hereinafter also simply referred to as "short circuits between probes") due to contact between adjacent probes 10.
- the shape of the guide hole 220 is not limited to the rectangular shape.
- the shape of the guide hole 220 may be a trapezoid, a parallelogram, or a square.
- the guide hole 220 may have a rectangular shape with rounded corners.
- the guide hole 220 may have an elliptical shape.
- the guide hole 220 shown in FIG. 7 has a long axis direction perpendicular to the offset direction F, and a short axis direction parallel to the offset direction F. In other words, even when the guide hole 220 has an elliptical shape, the longitudinal direction of the guide hole 220 is perpendicular to the offset direction.
- the guide hole 220 may have a rectangular shape with a relief process (corner relief) that widens the corners.
- corner relief By forming a corner relief at the corner of the guide hole 220, damage to the probe 10 and the guide plate 21 due to contact between the probe 10 and the corner of the guide hole 220 can be suppressed.
- the opening of the guide hole 220 in the cross section along the thickness direction of the guide plate 21 may be formed vertically as shown in FIG. 9A, or the diameter of the opening gradually increases as shown in FIG. 9B. It may be formed into a tapered shape that changes to . In other words, even if the cross-sectional shape of the opening of the guide hole 220 changes due to the processing method for forming the guide hole 220 in the guide plate 21, the effect of the electrical connection device 1 is not affected.
- FIG. 6 shows an example in which the test pads 200 are arranged in a matrix
- the electrical connection device 1 according to the first embodiment can be used even if the test pads 200 are not arranged in a matrix.
- the test pads 200 may be arranged in a staggered manner.
- FIG. 10 shows an example of the arrangement of the test pads 200 at the corners of the test pad 200 arrangement area when the test pads 200 are arranged in a staggered manner. The unit of size numbers in the figure is ⁇ m.
- the inner test pads 200 are arranged offset from the outer test pads 200 along the first direction M1 and the second direction M2. has been done.
- FIG. 11 shows an example of the arrangement of the guide holes 220, which corresponds to the arrangement of the test pads 200 shown in FIG. As shown in FIG. 11, even when the test pads 200 are arranged in a staggered manner, by making the offset direction F oblique with respect to the arrangement direction of the test pads 200, the contact between adjacent probes 10 can be prevented. It is possible to suppress short circuits between probes due to
- a plurality of insulating coating materials 13 are arranged on the surface of the probe 10.
- the covering materials 13 are spaced apart from each other along the central axis direction of the probe.
- the electrical connection device 1 shown in FIG. 12 differs from the electrical connection device 1 according to the first embodiment in that a covering material 13 is disposed on the surface of the probe 10.
- the other configurations of the electrical connection device 1 according to the second embodiment are the same as those of the first embodiment.
- the offset direction in the offset arrangement of the guide hole positions of the guide plate 21 obliquely intersects the arrangement direction of the test pads.
- the covering material 13 may be placed only on the offset surface or opposing surface of the probe 10.
- the coating material 13 of the probe 10 may be removed when the distance between the probes 10 becomes narrower than a predetermined value or when the probe 10 is bent away from the offset direction.
- the position of the probe 10 may shift inside the guide hole due to the difference (clearance) between the outer diameter of the probe 10 and the inner diameter of the guide hole.
- the probe 10 does not curve accurately in the offset direction, and the surface of the probe 10 on which the coating material 13 is not placed comes into contact with the surface of the adjacent probe 10 on which the coating material 13 is not placed. There is a risk of As a result, a short circuit between the probes occurs.
- the distance between the probes 10 is specific, there is a risk that the surfaces of the probes 10 on which the covering material 13 is not placed may come into contact with each other.
- the distance between the probes 10 in the direction perpendicular to the offset direction F is narrow, as shown by arrow T, the outer edge of the offset surface where the coating material 13 of the probe 10 is not placed , there is a risk that the opposing surfaces of adjacent probes 10 may come into contact with each other. As a result, a short circuit between the probes occurs.
- the covering material 13 is arranged only on the offset surface or the opposing surface, a short circuit between the probes may occur.
- the covering material 13 is continuously arranged on one side.
- the covering material 13 is disposed on the offset surface 101 of the probe 10 and the first side surface 103 and second side surface 104 connected to the offset surface. In other words, the covering material 13 is continuously disposed on the surface of the probe 10 from the first side surface 103 to the second side surface 104 via the offset surface 101. In the probe 10 shown in FIG. 14, even if the probes come into contact with each other, the covering material 13 prevents a short circuit between the probes.
- the covering material 13 is disposed intermittently in the portion passing through the first hollow portion 221 of the probe 10, including at least the curved portion.
- the probe 10 is likely to warp.
- warping of the probe 10 is suppressed by disposing the covering material 13 intermittently along the central axis direction. Therefore, the interval along the axial direction of the covering material 13 is set so as to suppress the warping of the probe 10 and to minimize the portion where the probes 10 are short-circuited due to contact with each other.
- a plurality of coating materials 13 are arranged on the surface of the probe 10 so as to be spaced apart from each other according to set intervals.
- the probe 10 is passed through the guide hole 220 of the guide plate 21.
- the probes 10 are continuously passed through the guide holes 220 of the guide plates 21 with the center axes of the guide holes 220 of all the guide plates 21 aligned. Therefore, the sum of the outer diameter of the probe 10 and the thickness of the covering material 13 is set smaller than the inner diameter of the guide hole 220.
- the material of the covering material 13 may be, for example, resins, glass fibers, permanent resists, ceramic vapor deposits, etc.
- the covering material 13 may be patterned using photolithography technology or the like.
- the length and spacing of the covering material 13 in the central axis direction can be arbitrarily set according to the thickness and material of the probe 10 within a range that does not cause warping of the probe 10.
- the coating materials 13 are arranged on the surface of the probe 10 at intervals of 50 ⁇ m.
- the thickness of the sheathing material 13 is set to a thickness that can prevent short circuits between the probes within a range that can ensure a clearance between the total of the outer diameter of the probe 10 and the thickness of the sheathing material 13 and the inner diameter of the guide hole 220.
- the electrical connection device 1 according to the second embodiment in addition to the arrangement direction of the test pads 200 and the offset direction diagonally intersecting each other, a covering material is provided on the surface of the probe 10. By arranging the probes 13, short circuits between the probes can be suppressed. Otherwise, the electrical connection device 1 according to the second embodiment is the same as the first embodiment, and redundant explanation will be omitted.
- the cross-section of the probe 10 may have another shape.
- the cross section of the probe 10 may have a polygonal shape other than a rectangular shape.
- the number of guide plates 21 included in the probe head 20 may be four or more.
- the covering material 13 is arranged on the offset surface 101, the first side surface 103, and the second side surface 104 of the probe 10 having a rectangular cross section, but the covering material 13 is also arranged on the opposing surface 102.
- the coating material 13 may be placed on the four surfaces of the probe 10.
- the covering material 13 may be continuously disposed on three surfaces of the probe 10: the opposing surface 102, the first side surface 103, and the second side surface 104.
- the side surface of the probe 10 that may come into contact with an adjacent probe 10 is only one side due to the relationship between the spacing between the probes, etc., the side surface that may come into contact with the adjacent probe 10 is offset.
- the covering material 13 may be placed on two surfaces or opposing surfaces.
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Abstract
Description
第1の実施形態に係る電気的接続装置1は、図1に示すように、複数のプローブ10と、プローブ10を保持するプローブヘッド20を有する。プローブ10は、被検査体の検査時に被検査体と接触する。以下において、被検査体に接触するプローブ10の一方の端部を「先端部11」、他方の端部を「基端部12」と称する。先端部11は、例えば、被検査体に配置された検査用パッドと接触する。基端部12は、例えば、図示していないプリント基板に配置した電極と接続する。プリント基板の電極は、テスタなどの検査装置と電気的に接続する。電気的接続装置1を介して、検査装置と被検査体の間で電気信号が伝搬する。
上記の図6では検査用パッド200がマトリクス状に配置されている例を示したが、検査用パッド200の配置がマトリクス状でなくても、第1の実施形態に係る電気的接続装置1は適用可能である。例えば、検査用パッド200が千鳥配列されていてもよい。図10に、検査用パッド200が千鳥配列されたときの、検査用パッド200の配置領域のコーナー部における検査用パッド200の配置例を示す。図中のサイズの数字の単位はμmである。図10に示した配置例では、検査用パッド200の配置領域において、外側の検査用パッド200に対して内側の検査用パッド200が、第1方向M1および第2方向M2に沿ってずらして配置されている。
本発明の第2の実施形態に係る電気的接続装置1は、図12に示すように、プローブ10の表面に複数の絶縁性の被覆材13が配置されている。被覆材13は、プローブの中心軸方向に沿って互いに離隔して配置されている。図12に示す電気的接続装置1は、プローブ10の表面に被覆材13が配置されている点が、第1の実施形態に係る電気的接続装置1と異なる。その他の構成については、第2の実施形態に係る電気的接続装置1は、第1の実施形態と同様である。例えば、ガイド板21のガイド穴の位置のオフセット配置におけるオフセット方向は、検査用パッドの配列方向に対して斜めに交差する。
上記のように本発明は実施形態によって記載したが、この開示の一部をなす論述および図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施形態、実施例および運用技術が明らかとなろう。
2…被検査体
10…プローブ
11…先端部
12…基端部
13…被覆材
20…プローブヘッド
21…ガイド板
211…第1ガイド板
212…第2ガイド板
213…第3ガイド板
220…ガイド穴
30…配線基板
101…オフセット面
102…対向面
103…第1側面
104…第2側面
200…検査用パッド
Claims (8)
- 被検査体の電気的特性の測定に使用される電気的接続装置であって、
前記被検査体の複数の検査用パッドにそれぞれ先端部が接触するように配置された複数のプローブと、
ガイド穴がそれぞれ形成された第1ガイド板と第2ガイド板を前記第1ガイド板の主面の面法線方向に沿って相互に離隔して配置した構成を有し、前記第1ガイド板と前記第2ガイド板の前記ガイド穴を貫通した状態の前記プローブを保持するプローブヘッドと
を備え、
同一の前記プローブが貫通する前記第1ガイド板の前記ガイド穴と前記第2ガイド板の前記ガイド穴の位置が、前記第1ガイド板の主面と平行にずらしてオフセット配置され、
前記オフセット配置における前記ガイド穴の位置のずれているオフセット方向は、前記検査用パッドの配列方向に対して斜めに交差する、
電気的接続装置。 - 前記第1ガイド板の主面の面法線方向から見た前記ガイド穴の断面形状に、前記オフセット方向に垂直な直線状の辺が含まれる、請求項1に記載の電気的接続装置。
- 前記第1ガイド板の主面の面法線方向から見た前記ガイド穴の断面形状における長手方向が、前記オフセット方向に垂直である、請求項1に記載の電気的接続装置。
- 前記検査用パッドは、第1方向および前記第1方向に直交する第2方向にマトリクス状に配置されており、前記オフセット方向は前記第1方向と前記第2方向のいずれに対しても斜めに交差する、請求項1に記載の電気的接続装置。
- 前記プローブが、前記プローブの中心軸方向に沿って互いに離隔して、前記プローブの表面に配置された複数の絶縁性の被覆材を備える、
請求項1乃至4のいずれか1項に記載の電気的接続装置。 - 前記プローブヘッドが、前記第1ガイド板と前記第2ガイド板との間の中空部分において前記オフセット方向に湾曲した状態の前記プローブを保持し、
前記被覆材が、少なくとも前記プローブの湾曲した部分に配置されている、
請求項5に記載の電気的接続装置。 - 前記プローブの前記中心軸方向に垂直な断面が、前記プローブの前記オフセット方向を向いたオフセット面、前記オフセット面に対向する対向面、および、前記オフセット面と前記対向面にそれぞれ接続する第1側面と第2側面で定義された矩形状であり、
前記被覆材が、前記第1側面から前記オフセット面を介して前記第2側面に渡って連続的に配置されていることを特徴とする請求項5に記載の電気的接続装置。 - 前記プローブの外径と前記被覆材の厚みの合計が、前記ガイド穴の内径よりも小さい、請求項5に記載の電気的接続装置。
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EP23864978.4A EP4589307A1 (en) | 2022-09-14 | 2023-05-11 | Electrical connection device |
KR1020257008484A KR20250050088A (ko) | 2022-09-14 | 2023-05-11 | 전기적 접속 장치 |
CN202380065558.5A CN119866444A (zh) | 2022-09-14 | 2023-05-11 | 电连接装置 |
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JP2005338065A (ja) * | 2004-04-26 | 2005-12-08 | Koyo Technos:Kk | 検査冶具および検査装置 |
US20080265873A1 (en) * | 2005-12-07 | 2008-10-30 | January Kister | Low profile probe having improved mechanical scrub and reduced contact inductance |
EP2107380A1 (en) * | 2008-04-01 | 2009-10-07 | Technoprobe S.p.A | Testing head having vertical probes configured to improve the electric contact with a device to be tested |
WO2010098558A2 (en) * | 2009-02-26 | 2010-09-02 | Gigalane Co.Ltd | Probe block |
JP2015118064A (ja) | 2013-12-20 | 2015-06-25 | 東京特殊電線株式会社 | コンタクトプローブユニット |
US20190227101A1 (en) * | 2018-01-24 | 2019-07-25 | Chunghwa Precision Test Tech. Co., Ltd. | Probe card device and rectangular probe |
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US9329205B2 (en) * | 2012-03-20 | 2016-05-03 | Star Technologies Inc. | High-precision semiconductor device probing apparatus and system thereof |
CN110346616B (zh) * | 2018-04-03 | 2021-06-15 | 中华精测科技股份有限公司 | 探针卡装置及探针座 |
JP7381209B2 (ja) * | 2019-03-06 | 2023-11-15 | 株式会社日本マイクロニクス | 電気的接続装置 |
IT202000027149A1 (it) * | 2020-11-12 | 2022-05-12 | Technoprobe Spa | Testa di misura con un contatto migliorato tra sonde di contatto e fori guida metallizzati |
-
2022
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2023
- 2023-05-11 WO PCT/JP2023/017750 patent/WO2024057613A1/ja active Application Filing
- 2023-05-11 KR KR1020257008484A patent/KR20250050088A/ko active Pending
- 2023-05-11 EP EP23864978.4A patent/EP4589307A1/en active Pending
- 2023-05-11 CN CN202380065558.5A patent/CN119866444A/zh active Pending
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Patent Citations (6)
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JP2005338065A (ja) * | 2004-04-26 | 2005-12-08 | Koyo Technos:Kk | 検査冶具および検査装置 |
US20080265873A1 (en) * | 2005-12-07 | 2008-10-30 | January Kister | Low profile probe having improved mechanical scrub and reduced contact inductance |
EP2107380A1 (en) * | 2008-04-01 | 2009-10-07 | Technoprobe S.p.A | Testing head having vertical probes configured to improve the electric contact with a device to be tested |
WO2010098558A2 (en) * | 2009-02-26 | 2010-09-02 | Gigalane Co.Ltd | Probe block |
JP2015118064A (ja) | 2013-12-20 | 2015-06-25 | 東京特殊電線株式会社 | コンタクトプローブユニット |
US20190227101A1 (en) * | 2018-01-24 | 2019-07-25 | Chunghwa Precision Test Tech. Co., Ltd. | Probe card device and rectangular probe |
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JP2024041465A (ja) | 2024-03-27 |
KR20250050088A (ko) | 2025-04-14 |
CN119866444A (zh) | 2025-04-22 |
EP4589307A1 (en) | 2025-07-23 |
TW202411661A (zh) | 2024-03-16 |
TWI856665B (zh) | 2024-09-21 |
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