WO2007116795A1 - 電気的接続装置 - Google Patents
電気的接続装置 Download PDFInfo
- Publication number
- WO2007116795A1 WO2007116795A1 PCT/JP2007/056751 JP2007056751W WO2007116795A1 WO 2007116795 A1 WO2007116795 A1 WO 2007116795A1 JP 2007056751 W JP2007056751 W JP 2007056751W WO 2007116795 A1 WO2007116795 A1 WO 2007116795A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- region
- block
- reference mark
- electrical connection
- Prior art date
Links
Classifications
-
- 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
- G01R1/0735—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 arranged on a flexible frame or film
-
- 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
-
- 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 for an energization test of a flat test object such as an integrated circuit or a display substrate.
- a flat object such as an integrated circuit or a display substrate is subjected to an energization test using an electrical connection device such as a probe card.
- an electrical connection device such as a probe card.
- the object to be inspected is pressed in contact with the contact of the electrical connection device against the electrode.
- Patent Document 1 Japanese Patent Laid-Open No. 2 0 0 2-3 1 1 0 4 9
- each contact includes a pedestal portion coupled to the wiring at one end, an arm portion extending in the longitudinal direction of the wiring from the other end of the pedestal portion, and a tip of the arm portion.
- a needle tip portion that protrudes on the opposite side of the pedestal portion.
- the arm portion and the needle tip portion function as a main body portion that substantially undergoes elastic deformation in the arm portion when the tip of the needle tip portion, that is, the needle tip is pressed against the electrode of the object to be inspected.
- a circuit board using such a contact is attached to a support board such as a wiring board by an attachment device so that the needle tip can be directed to the object to be inspected. Assembled.
- the mounting device includes a first reinforcing plate (plate-shaped member) disposed on the upper surface of the wiring board, and a ring-shaped member disposed on the stepped part so as to be positioned on the downward stepped part provided in the center of the wiring board.
- the first reinforcing plate is attached to the wiring board by a plurality of mounting screws that penetrate the first reinforcing plate and the wiring board in the vertical direction and are screwed to the second reinforcing plate.
- a second reinforcing plate is attached to the wiring board.
- the circuit board is bonded to the mounting surface of the base in the contact area where the contact is arranged, and a ring-shaped presser plate is formed on the lower surface of the wiring board at the outermost peripheral edge of the outer peripheral area around the contact area. And a plurality of set screws.
- the electrical connection device as described above is positioned (that is, alignment) to position the needle tip of the contactor with respect to the coordinates of the inspection device while attached to the inspection device such as a prober. . Thereafter, the electrical connecting device energizes an appropriate contact with the needle tip pressed against the electrode of the object to be inspected. As a result, an energization test is performed.
- the above positioning is performed on the software of the inspection apparatus so that the position of the appropriate needle tip of the contact with respect to the coordinates of the inspection apparatus is measured and then the measurement position becomes the target position on the coordinates of the inspection apparatus.
- This can be done by changing the coordinates or by modifying the mounting position of the electrical connection device to the inspection device. Such positioning is performed each time the electrical connection device is changed.
- the electrical connection device manufacturer checks whether the energized state is good or not. It has been broken. This check is performed by energizing all probes simultaneously or sequentially, or every plurality of probes, with the needle tips of all the contacts pressed against the pseudo test piece.
- the tip position as described above is generally determined by directing a light beam such as a laser beam toward the needle tip and measuring the reflected light from the needle tip with a measuring instrument. Alternatively, it is determined by photographing the needle tip with a video camera and performing electrical image processing on the output signal.
- An object of the present invention is to increase the measurement accuracy of the needle tip position. Means for solving the problem
- the electrical connection device is a block having a support substrate having an upper surface and a lower surface, and a mounting surface directed downward, wherein the support surface is positioned at least below the support substrate.
- a flexible circuit board having a block attached to a substrate, a contact region in which a plurality of contacts are arranged, and an outer region around the contact region, wherein at least the contact region is the A circuit board attached to the lower surface of the support substrate in a part of the outer region in a state of being opposed to the mounting surface of the block, a lower end surface and a reference mark for positioning provided on the lower end surface And a reference mark member attached to the block in a state where the lower end surface is exposed below the circuit board.
- the position of the fiducial mark is measured to position the contact needle tip relative to the inspection device.
- the reference mark since the reference mark is formed on the lower end surface of the positioning mark member other than the contact, the reference mark can have optical characteristics different from the surroundings such as a cross shape or a dot.
- the needle tip position can be measured with high accuracy regardless of whether or not the foreign matter remains on the needle tip and without being affected by the optical characteristics in the vicinity of the mark.
- At least a lower end portion of the reference mark member may penetrate the circuit board. By doing so, since the reference mark is exposed below the circuit board, the reference mark can be measured more reliably.
- the circuit board may include a plurality of wirings extending radially outward from the contact region. By doing so, the distance between the adjacent wirings in the circumferential direction can be increased as the position is on the outer side in the radial direction. For this reason, the reference mark member should be penetrated at a location outside the contact area of the circuit board where the positioning mark member does not affect the wiring of the circuit board, that is, a location where the spacing between adjacent wirings in the circumferential direction is wide. It comes out.
- the lower end surface may include at least a pair of the reference mark members spaced apart from each other with the contact region of the circuit board interposed therebetween.
- the reference mark member may include a pin member.
- each pin member may be attached to the block at the upper part, and the lower end part may protrude downward from the circuit board.
- the outer peripheral region of the circuit board includes an intermediate region around the contactor region, and a plurality of extending portions extending in a radial direction from the intermediate region with an interval around the intermediate region, A truncated polygonal cone-shaped downward surface formed by the mounting surface, an intermediate surface that continues around the mounting surface, and a slope that continues around the intermediate surface, and the contactor region has the mounting surface
- Each reference mark member is opposed to a surface, and the intermediate region is opposed to a surface region around the mounting surface, and at least a part of the extended portion is opposed to the slope. It may protrude downward from the slope of the block and pass through the extending portion of the circuit board.
- the contact region may be bonded to the attachment surface. By doing so, the contact area is stably supported by the block, so that the contact is stabilized with respect to the support substrate.
- the lower end surface of the reference mark member may be retracted upward from the contact area. By doing so, when the needle tip is pressed against the object to be inspected, the position of the lower end surface of the positioning mark member may be higher than the contact so that the positioning mark member does not contact the object to be inspected. it can.
- FIG. 1 is an exploded perspective view showing an embodiment of an electrical connection device according to the present invention.
- FIG. 2 is a plan view of the electrical connection apparatus shown in FIG.
- FIG. 3 is a cross-sectional view taken along line 3-3 in FIG.
- FIG. 4 is a bottom view of the electrical connection apparatus shown in FIG.
- FIG. 5 is a bottom view of the electrical connection device shown in FIG. 1 with the circuit board and the holding plate removed.
- FIG. 6 is an exploded perspective view showing an embodiment of a ring-shaped member, a leaf spring, and a spring retainer.
- FIG. 7 is a perspective view showing an example of a block.
- FIG. 8 is a perspective view showing a state in which the circuit board is attached to the block.
- FIG. 9 is an enlarged bottom view showing the contact area of the circuit board and its periphery.
- FIG. 10 is a plan view showing an embodiment of a circuit board.
- FIG. 11 is a cross-sectional view taken along line 1 1 1 1 1 in FIG.
- Fig. 12 is an enlarged cross-sectional view of the contact area of the circuit board and its surroundings.
- FIG. 13 is an enlarged cross-sectional view showing a state where the circuit board is attached to the support board.
- Block mounting surface Middle surface of block
- Circuit board contact area 7 8 Outside area of circuit board
- the left-right direction is referred to as the X direction or the left-right direction
- the front-rear direction is referred to as the front-rear direction or the Y direction
- the up-down direction is referred to as the up-down direction or the Z direction.
- these directions differ depending on the posture in which the inspection object is arranged in the inspection apparatus, that is, the posture of the inspection object arranged in the inspection apparatus.
- the above direction is such that the X direction and the Y direction are either a horizontal plane, an inclined plane inclined with respect to the horizontal plane, or a vertical plane perpendicular to the horizontal plane. It may be determined, or it may be determined to be a combination of these surfaces.
- the electrical connection device 10 is a professional for conducting energization tests on rectangular integrated circuits (not shown). It is used in the same way as a precard.
- the integrated circuit has a plurality of electrodes. In the example shown in FIG. 9, these electrodes are arranged in two rows at intervals in the left-right direction (or front-rear direction).
- the electrical connection device 10 includes a disk-shaped support substrate 12, a plate-shaped member 14 attached to the upper surface of the support substrate 12 2, and a plate-shaped member 1.
- a plate-shaped member 1 6 disposed on the lower side
- Plate spring 1 8 disposed on the lower side of the ring-shaped member 1 6, and base or block 2 mounted on the lower surface of the plate spring 1 8
- a film board disposed under the block 20 that is, a circuit board 2 2, a plurality of reference mark members 2 4 attached to the block 20, and a plate-like member 1 4 with a thickness thereof
- a plurality of adjusting screws 2 6 penetrating in the direction and abutting against the ring-shaped member 16.
- the support substrate 12 has a through hole 28 that penetrates the center of the support substrate 12 in the thickness direction (vertical direction), and a plurality of tester lands 30 (see FIG. 2) connected to the tester are provided on the peripheral edge of the upper surface.
- a plurality of connecting lands 3 2 are provided at intervals in the circumferential direction on the lower surface of the region between the through hole 28 and the outer peripheral edge.
- the through hole 28 has a circular planar shape.
- the support substrate 12 also includes a plurality of wirings (conductive paths) that connect the tester lands 30 and the connection lands 32 in a one-to-one manner.
- a support plate 12 can be a wiring board made of glass-filled epoxy resin or ceramic material.
- the plate-like member 14 has a disk shape larger than the through-hole 2 8, and includes a plurality of screw members 3 4 that pass through the plate-like member 14 and are screwed to the support substrate 12.
- the through hole 28 is attached to the upper surface of the support substrate 12 in a state of closing the through hole 28, that is, parallel to the support substrate 12.
- the plate-like member 14 is made of a metal material such as stainless steel so as to act as a reinforcing plate for the support substrate 12. For this reason, the plate-like member 14 does not have to be a complete plate.
- a flat central portion is spaced from the central portion in the circumferential direction of the virtual circle.
- a plurality of extending portions extending in the radial direction of the imaginary circle, and an outer peripheral portion connected to the tips of these extending portions and extending in the circumferential direction of the virtual circle It may have a shape.
- the ring-shaped member 16 is also a plate-shaped ring having a metal material such as stainless steel, particularly a metal material having a low coefficient of thermal expansion and having an outer diameter slightly smaller than the diameter of the through hole 28.
- the support substrate 12 is formed in a through hole.
- the ring-shaped member 16 includes a support substrate 12 and a plate-shaped member 1 4 through a plurality of mounting screws 3 6 that pass through the plate-shaped member 14 in the thickness direction and are screwed to the ring-shaped member 16. Is attached to the lower surface of the plate-like member 14 in parallel.
- the leaf spring 18 includes a flat central region 3 8 and a plurality of plate-like rims extending from the central region 3 8 in the radial direction of the virtual circle at intervals in the circumferential direction of the virtual circle. It has a region 39 and a ring-shaped peripheral region 40 that continues integrally around the rim region 39!
- the central region 38 and the plate-like rim region 39 have an asterisk (*)-like shape.
- the number of rim regions 39 can be any appropriate value such as 4, 6, 8, etc. In the illustrated example, the number of the rim regions 39 is four, and thus the central region 38 and the rim region 39 have a cross shape that intersects with the central region 38.
- the leaf springs 18 are made of a material selected from the group including tungsten, molybdenum, their alloys and ceramic materials, which have a lower coefficient of thermal expansion than that of stainless steel.
- the thickness dimension of the leaf spring 18 can be about 0.1 mm to 0.25 mm. If the thickness dimension of the leaf spring 18 exceeds 0.1 mm, the rigidity of the leaf spring itself becomes too large, and if it is less than 0.25 mm, the spring property of the leaf spring itself becomes too small. As a result, if the thickness dimension of the leaf spring 18 is within the above range, the amount of deflection of the leaf spring 18 due to overdrive described later will be an optimum value, and irregular deflection of the leaf spring 18 will be prevented. Is done.
- the leaf spring 1 8 includes a plurality of spring retainers 4 2 each having an arc shape, and a plurality of screw members 4 4 that pass through the spring retainers 4 2 from below and are screwed to the ring-shaped member 1 6.
- the lower surface of the ring-shaped member 16 is assembled in parallel with the support substrate 12.
- the spring retainers 42 are combined so that they form a similar ring in the peripheral region 40 of the leaf spring 18. However, it may be a single spring retainer in the shape of a ring.
- the inner peripheral surfaces of the ring-shaped member 16 and the spring retainer 42 are respectively located at locations corresponding to the boundary between the rim region 38 and the outer peripheral region 40 of the leaf spring 18.
- the block 2 0 has a mounting surface 5 0 and a mounting surface 5 0 for mounting the circuit board 2 2.
- a lower block portion 5 4 having a truncated polygonal pyramid-shaped downward surface formed by an intermediate surface 5 1 extending around and a plurality of inclined surfaces 5 2 extending around the intermediate surface 5 1, and a leaf spring at the upper end surface 1 to 8 with a prismatic upper block portion 5 8 as a surface to be attached 5 6.
- the mounting surface 50, the intermediate surface 51, and the mounted surface 5 6 are parallel surfaces, and the downward surface of the lower block part 5 4 has a truncated octagonal pyramid shape. .
- the block 20 is a state in which the central region 3 8 of the leaf spring 18 is sandwiched between the rectangular assembly plate 60 and the upper block portion 58, and the lower block portion 5 4 is attached to the support substrate 12 In a state of projecting downward, the upper block portion 58 is assembled to the lower surface of the central region 38 of the leaf spring 18 by a plurality of screw members 62.
- the mounting surface 50 of the block 20 has a rectangular shape similar to the shape of the integrated circuit to be tested.
- the attachment surface 50 protrudes slightly below the intermediate surface 51 around it.
- the lower end portion of the lower block portion 54 is formed with a recess 64 that opens to the attachment surface 50 and a downward groove 66 extending around the recess 6 4.
- the circuit board 2 2 is formed by forming a plurality of strip-shaped wirings, that is, conductive paths 72 inside an electrically insulating sheet 70 such as polyimide. 7 2 is equipped with a contact 7 4 For this reason, the circuit board 22 has flexibility.
- the sheet 70 is composed of three sheet members 70a, 70b, and 70c.
- the circuit board 22 has a rectangular contact region 76 where the contact 74 is disposed, and an outer region 78 around the contact region 76.
- the outer region 7 8 is centered on the needle region 76 from the intermediate region 80 with an interval around the intermediate region 80, and an intermediate region 80 that continues integrally around the contact region 76.
- a plurality of extending portions 8 2 extending in the radial direction of the virtual circle.
- Each of the conductive paths 72 extends from the inside of the contact region 76 where the contact 74 is disposed to the outside region 7 8 outward in the radial direction of the virtual circle.
- a connection bump 8 4 (see FIG. 13) that protrudes upward through the sheet members 7 O b and 70 c.
- each conductive path 7 2 Has a three-layer structure of copper, nickel, and copper. As shown in FIGS. 11 and 12, the plate 86 is embedded at a location corresponding to the contact region 76 so as to maintain the flatness of the contact region 16.
- the contactor region 76 protrudes downward from the intermediate surface 51 by an amount corresponding to the sum of the thickness of the plate 86 and the protruding amount of the mounting surface 50 with respect to the intermediate surface 51.
- the plate 86 is made of an appropriate material such as a ceramic plate or a stainless steel plate.
- the sheet members 70 and 70b jointly sandwich the conductive path 72, and the sheet members 70b and 70c wrap the plate 86 together.
- the sheet 70, the conductive path 72, and the plate 86, as described above, are formed on one side of the sheet member 70a using a photolithographic technique, an electric plating technique, a resin coating technique, an electric forging technique, or the like.
- a plurality of conductive paths 7 2 are formed on the surface of the sheet member 70, a sheet member 70 b is then formed on the side of the conductive path 7 2 of the sheet member 70 a, and a plate 8 6 is formed on the contact region 7 of the sheet member 70 b.
- the sheet member 70 c is formed on the side of the plate of the sheet member 70 b and can be manufactured.
- Each contact 74 includes a pedestal portion 8 8 that is joined to the corresponding conductive path 72 and protrudes downward from the sheet member 70 a, and a main body portion 90 that continues integrally with the lower end of the pedestal portion 8 8.
- the pedestal portion 8 8 includes a first seat portion 8 8 a formed of a metal material (for example, copper) of the same type as the joint portion of the corresponding conductive path 72 and a lower end of the first seat portion 8 8 a. And a second seat portion 8 8 b joined.
- the first seat portion 8 8 a is joined to the corresponding conductive path 7 2 on the rear end surface thereof. Yes.
- the second seat portion 8 8 b is made of the same metal material (for example, nickel) as the main body portion 90 and is integrally formed with the main body portion 90.
- the main body 90 includes an arm portion 90 a that extends horizontally from the lower end of the second seat portion 88 b and a needle tip 90 b that protrudes downward from the tip of the arm portion 90 a.
- the contact 74 as described above is formed by using, for example, a photolithography technique, an electric plating technique, an electric fabrication technique, or the like, using the first seat portion 8 8 a, the second seat portion 8 8 b,
- the arm portion 9 0 a and the needle tip portion 9 0 b can be manufactured by sequentially forming them in the order or in the reverse order.
- the contact ⁇ 4 manufactured as described above has a conductive path 7 2 corresponding to the upper end surface of the first seat portion 8 8 a by a conductive adhesive after part of the sheet member 70 a is removed. To be joined. As a result, each contact 74 is supported in a cantilevered manner on the sheet 70 in a state in which the main body 90 is spaced downward from the sheet 70.
- each contact 74 is supported by the sheet 70 in a cantilever shape.
- the needle point 9 0 b, the arm part 90 a, the second seat part 8 8 b, the seat member 70 a, the first seat part 8 8 a, the conductive path 7 2 and the seat 70 b It can be manufactured in the order of the spread sheet member 70 c.
- the plate 86 may be disposed on the sheet member 70b prior to forming the sheet member 70c.
- the circuit board 2 2 is manufactured as described above, the conductive path 7 2 and the first seat 8 8 a, the first seat 8 8 a and the second seat 8 8 b, and the second seat The bond strength between each of 8 8 b and arm portion 90 a and between arm portion 90 a and needle tip 90 b increases.
- the first seat portion 8 8 a is the same metal material as the joint portion of the conductive path 72
- the second seat portion 8 8 b is the same metal material as the main body portion 90
- the coupling strength between the seat portion 8 8a and the conductive path 72 and the coupling strength between the second seat portion 8 8 and the main body 90 are further increased.
- the joint surfaces of the first and second seat portions 8 8 a and 8 8 b are within the sheet member 70 a as shown in FIG. As a result, the joint surfaces of both seats 8 8 a and 8 8 b Since it is surrounded by the seat member 70 a, even if a bending moment acts on the pedestal portion 88, separation of the first and second seat portions 88 a and 88 b due to the bending moment is prevented.
- the circuit board 2 2 has a contact region 76 and an intermediate region 80 facing the mounting surface 50 of the block 20, and a part of the extension portion 82. Is attached to the mounting surface 50 with an adhesive 92 stored in the recess 64 at least in the contact region 76.
- the contactor region 76 and the surrounding intermediate region 80 are pressed against the attachment surface 50 and the surrounding intermediate surface 51 when bonded to the block 20, respectively.
- the excess adhesive in the recess 64 is pushed out to the area around the contactor area 76 (at least a part of the intermediate area 80).
- the circuit board 22 is maintained in a state in which the contact area 76 protrudes downward from the surrounding area.
- the contactor area 7 6 and the area around it are bonded to the mounting surface 50 and the area around it, the contact area 76 and the area around it are stable to block 20 Therefore, the contact 7 4 is stabilized with respect to the support substrate 12.
- the circuit board 22 also has a plate-like rubber ring 9 4 having elasticity like silicone rubber in a state where the connection bump 8 4 is pressed against the connection land 3 2 as shown in FIG. In this way, the plate-shaped presser ring 96 having a certain degree of rigidity and a plurality of screw members 98 are attached to the lower surface of the support substrate 12.
- the positioning of the circuit board 2 2 with respect to the support board 1 2 is as follows.
- the positioning pins extend downward from the circuit board 12 and pass through the circuit board 2 2, the rubber ring 9 4 and the presser ring 9 6 and protrude downward. This is done by 1 0 0.
- Each positioning pin 100 is stably supported by the support substrate 12.
- each contact 74 has its needle tip 90 b facing the corresponding electrode of the object to be inspected. And electrically connected to the tester land 3 0 of the support substrate 1 2 through the conductive path 7 2, connection bump 8 4, connection land 3 2, wiring in the support substrate 1 2, etc. It is connected.
- Each reference mark member 24 is a pin member that protrudes downward from the slope 52 of the lower block 54, and is stably supported by the lower block 54 at the upper part.
- three sets of fiducial mark members 24 are provided. The reference mark members 24 of each set are opposed to each other with the contactor region 76 and the intermediate region 80 therebetween.
- each reference mark member 24 is a surface parallel to the mounting surface 50, and the height position of the lower end surface of each reference mark member 24 is retracted above the height position of the contact 74. It is.
- each fiducial mark member 24 protrudes below the circuit board 22 through the extending portion 82 of the circuit board 22 through the adjacent conductive paths 72.
- the distance between the adjacent conductive paths 72 in the extending portion 82 is wider than that in the intermediate region 80, so that the reference mark member 24 does not affect the position where the conductive paths 72 are formed.
- each fiducial mark member 24 has the fiducial mark 10 2 on the lower end surface.
- Each reference mark 1 0 2 is connected to the reference mark 1 0 2 of the reference mark member 2 4 facing each other with the contact region 7 6 therebetween, and the two reference marks 1 0 2 of the electrical connecting device 1 0 This represents the position of the needle tip 90 located between them.
- the fiducial mark 1 0 2 has different optical characteristics from the surroundings.
- the reference mark 1 0 2 is the center of the circle in the example shown in the figure, but it can be a dot, a cross-shaped intersection, etc.
- Each reference mark 1 0 2 has a mark layer in advance as a reference mark member 2 4 After the electrical connection device 10 is completed, the position of the needle tip 90 is measured, and the mark layer is measured according to the measurement result. It can be formed by removing the corresponding part of the laser beam. By doing so, it is possible to accurately form the reference mark 10 2 without depending on the assembly accuracy of the electrical connecting device 10.
- the block 20, the reference mark member 2 4, the spring retainer 4 2, the assembly plate 60, and the positioning pin 1 0 0 are made of an appropriate material, preferably an electrically insulating metal material.
- the parallelism of the contact region 76 with respect to the support substrate 12 is adjusted. This parallelism adjustment is performed in a state where the screw amount of the mounting screw 3 6 to the ring-shaped member 16 is reduced and the contact region 7 6 is parallel to the support substrate 12 so that the plate member 14 is parallel to the support substrate 12.
- the contactor region 76 is bonded to the mounting surface 50, it is surely displaced together with the block 20 with respect to the support substrate 12 at the time of adjusting the parallelism.
- the electrical connection device 10 is in a state where the contactor area 76 is located above the arrangement area of the object to be inspected, and the needle tip 9 0b of each contactor 74 is opposed to the electrode of the object to be inspected.
- the tester land 30 of the support substrate 12 is connected to the electrical circuit for the current test.
- each contact 74 is electrically connected to an electrical circuit for an energization test.
- the reference mark 10 0 2 is measured for positioning the needle tip 90 b of the contact 74 relative to the inspection device.
- the reference mark 10 2 is formed on the lower end surface of the reference mark member 2 4 other than the contact 7 4, regardless of whether foreign matter remains on the needle tip 9 0 b or The needle tip position can be accurately and reliably measured without being affected by the optical characteristics in the vicinity of the reference mark 10 2.
- the reference mark 10 2 it is only necessary to measure the reference mark 10 2 of at least one pair of reference mark members 24 4 whose lower end surfaces are spaced apart from each other with the contactor region 76 therebetween. As a result, it is possible to accurately measure the two-dimensional position of the contact 74 in the coordinates of the inspection device, and the lower end surface of the three sets of reference mark members 2 separated from each other by the contact region 76. If the reference mark 1 0 2 of 4 is measured, the two-dimensional position of the contact 7 4 in the coordinates of the inspection device can be measured more accurately.
- each contact 74 has its needle point 90 b attached to the corresponding electrode of the object to be inspected.
- the overdrive acts on the contact 7 4 when pressed.
- each contact 7 4 When the needle tip 9 0 b of each contact 7 4 is pressed against the electrode of the test object, the cantilever-like contact 7 4 is slightly elastically arced at the arm portion 90 0 a by overdrive. And the leaf spring 18 is elastically deformed.
- the electrical connection device 10 has the following technical merit when the overdrive acts on the contact 74.
- a part of the contact area 7 6 of the circuit board 2 2, the intermediate area 80, and the extended part 8 2, respectively, is the mounting surface 5 0 of the block 2 0, the intermediate area 8 0, and the extended area Since the height position of the lower end surface of each reference mark member 24 is higher than the height position of the contact 74, the needle tip 9 0b is When pressed by the electrode of the object to be inspected, the reference mark member 24 does not contact the object to be inspected.
- the leaf spring 18 acts as a reaction body in the central region, which is the region where the contact 74 on the circuit board 22 is disposed.
- the leaf spring 18 is slightly elastically deformed by the circuit board 22 and the block 20 to allow the contactor region 76 to be displaced in parallel upward by overdrive.
- the pressing force of the contact 74 on the electrode becomes uniform.
- the block 20 reliably transmits the deformation of the contactor area 7 6 of the circuit board 2 2 to the leaf spring 1 8, and the through hole 2 8 easily inertially deforms the leaf spring 1 8 toward the ring-shaped member 16. Forgive this. As a result, the elastic deformation of the leaf springs 18 and the circuit board 2 2 is stabilized, and the respective contacts 7 4 become in contact with the electrodes.
- Irregular bending of the leaf spring 18 when the overdrive acts on the contact 7 4 is that the block 20 is attached to the star-shaped or cross-shaped intersection of the leaf spring 18, ring shape Flat area 4 6 and 4 8 in which the inner peripheral surface of member 1 6 and spring retainer 4 2 extends in the tangential direction and the vertical direction of the outer peripheral surface of leaf spring 1 8 and the central region 3 8 and peripheral region of leaf spring 1 8 For example, it is surely prevented by having it at each position corresponding to the boundary with 40, and the pressing force of the contact 74 to the electrode becomes more uniform.
- the joint between the two seats 8 8 a and 8 8 b is located in the seat 70, that is, the joint is located within the thickness dimension of the seat 70, Part of the acting bending moment is received by the sheet 70, and the joint is Protected.
- the pedestal portion 8 8 has the main body portion 90, particularly the tip of the contact 74, separated greatly by the seat 70 force. For this reason, it is difficult for the body 90 to come into contact with the seat 70 due to overdrive!
- the sheet 70 is unlikely to contact the object to be inspected, and as a result, the corroding element 74 contacts the electrode of the object to be inspected reliably.
- the leaf spring 18 has a thickness dimension of 0.1 mm to 0.25 mm, the amount of deflection of the leaf spring 18 due to overdrive becomes the optimum value, and the irregularity of the leaf spring 18 Bending is more reliably prevented.
- leaf spring 1 8 and the contact 7 4 are designed so that the amount of deflection of the leaf spring 18 when the overdrive is applied to the contact is twice the amount of deflection of the contact 7 4.
- the amount of deflection of the leaf springs 1 8 and contacts 7 4 due to the bar drive becomes the optimum value, and irregular stagnation of the leaf springs 1 8 and contacts 7 4 is prevented.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Measuring Leads Or Probes (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/296,430 US7934944B2 (en) | 2006-04-07 | 2007-03-22 | Electrical connecting apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006105924A JP4902248B2 (ja) | 2006-04-07 | 2006-04-07 | 電気的接続装置 |
JP2006-105924 | 2006-04-07 |
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WO2007116795A1 true WO2007116795A1 (ja) | 2007-10-18 |
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US (1) | US7934944B2 (ja) |
JP (1) | JP4902248B2 (ja) |
KR (1) | KR101004254B1 (ja) |
TW (1) | TW200804825A (ja) |
WO (1) | WO2007116795A1 (ja) |
Cited By (3)
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US7800001B2 (en) | 2006-04-14 | 2010-09-21 | Kabushiki Kaisha Nihon Micronics | Probe sheet and electrical connecting apparatus |
US7934945B2 (en) | 2006-09-28 | 2011-05-03 | Kabushiki Kaisha Nihon Micronics | Electrical connecting apparatus |
US8202684B2 (en) | 2006-04-14 | 2012-06-19 | Kabushiki Kaisha Nihon Micronics | Method for manufacturing probe sheet |
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JP5124877B2 (ja) * | 2008-04-04 | 2013-01-23 | 株式会社日本マイクロニクス | 電気的接続装置 |
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TWI414793B (zh) * | 2009-09-15 | 2013-11-11 | Mpi Corp | High frequency probe card |
JP2013130400A (ja) * | 2011-12-20 | 2013-07-04 | Micronics Japan Co Ltd | プローブ組立体及びこれを含むプローブカード並びにこれらの製造方法 |
JP5847663B2 (ja) * | 2012-08-01 | 2016-01-27 | 日本電子材料株式会社 | プローブカード用ガイド板の製造方法 |
US9435855B2 (en) | 2013-11-19 | 2016-09-06 | Teradyne, Inc. | Interconnect for transmitting signals between a device and a tester |
US9594114B2 (en) | 2014-06-26 | 2017-03-14 | Teradyne, Inc. | Structure for transmitting signals in an application space between a device under test and test electronics |
JP6653996B2 (ja) * | 2015-04-27 | 2020-02-26 | 日本電子材料株式会社 | プローブカード |
CN206096201U (zh) * | 2016-07-21 | 2017-04-12 | 梁永焯 | 用于半导体晶圆测试的系统、切线探针卡及其探头组件 |
US9977052B2 (en) | 2016-10-04 | 2018-05-22 | Teradyne, Inc. | Test fixture |
JP2019149420A (ja) * | 2018-02-26 | 2019-09-05 | 富士通株式会社 | 基板 |
US10677815B2 (en) | 2018-06-08 | 2020-06-09 | Teradyne, Inc. | Test system having distributed resources |
US11363746B2 (en) | 2019-09-06 | 2022-06-14 | Teradyne, Inc. | EMI shielding for a signal trace |
US11862901B2 (en) | 2020-12-15 | 2024-01-02 | Teradyne, Inc. | Interposer |
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- 2007-03-22 WO PCT/JP2007/056751 patent/WO2007116795A1/ja active Application Filing
- 2007-03-22 KR KR1020087023513A patent/KR101004254B1/ko active IP Right Grant
- 2007-03-26 TW TW096110316A patent/TW200804825A/zh not_active IP Right Cessation
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US7800001B2 (en) | 2006-04-14 | 2010-09-21 | Kabushiki Kaisha Nihon Micronics | Probe sheet and electrical connecting apparatus |
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US7934945B2 (en) | 2006-09-28 | 2011-05-03 | Kabushiki Kaisha Nihon Micronics | Electrical connecting apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP4902248B2 (ja) | 2012-03-21 |
KR20080098455A (ko) | 2008-11-07 |
TW200804825A (en) | 2008-01-16 |
TWI325961B (ja) | 2010-06-11 |
KR101004254B1 (ko) | 2011-01-03 |
US20100029099A1 (en) | 2010-02-04 |
US7934944B2 (en) | 2011-05-03 |
JP2007278859A (ja) | 2007-10-25 |
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