WO2005103734A1 - シート状プローブおよびその製造方法並びにその応用 - Google Patents
シート状プローブおよびその製造方法並びにその応用 Download PDFInfo
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- WO2005103734A1 WO2005103734A1 PCT/JP2005/007939 JP2005007939W WO2005103734A1 WO 2005103734 A1 WO2005103734 A1 WO 2005103734A1 JP 2005007939 W JP2005007939 W JP 2005007939W WO 2005103734 A1 WO2005103734 A1 WO 2005103734A1
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- sheet
- probe
- insulating layer
- electrode
- metal layer
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H29/00—Drive mechanisms for toys in general
- A63H29/22—Electric drives
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H30/00—Remote-control arrangements specially adapted for toys, e.g. for toy vehicles
- A63H30/02—Electrical arrangements
- A63H30/04—Electrical arrangements using wireless transmission
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H31/00—Gearing for toys
-
- 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
-
- 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
- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R3/00—Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments, e.g. of probe tips
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
Definitions
- Sheet-shaped probe Method of manufacturing the same, and application thereof
- the present invention relates to a sheet-like probe suitable as a probe device for making an electrical connection to a circuit, for example, in an electrical inspection of a circuit such as an integrated circuit, a method of manufacturing the same, and an application thereof.
- the circuit is arranged according to a pattern corresponding to a pattern of an electrode to be inspected of the circuit device to be inspected.
- An inspection probe having an inspection electrode is used.
- the circuit device to be inspected is a wafer on which a large number of integrated circuits are formed
- an inspection probe for inspecting the wafer it is necessary to arrange a very large number of inspection electrodes. Since it is necessary, the inspection probe becomes extremely expensive, and when the pitch of the electrodes to be inspected is small, it is difficult to produce the inspection probe itself.
- a wafer is generally warped, and the state of the warp is different for each product (wafer). Therefore, for a large number of electrodes to be inspected on the wafer, each of the inspection electrodes of the inspection probe is used. It is practically difficult to make stable and reliable contact.
- FIG. 39 is an explanatory cross-sectional view showing a configuration of an example of a conventional probe card including an inspection circuit board 85, an anisotropic conductive sheet 80, and a sheet probe 90.
- an inspection circuit board 85 having a large number of inspection electrodes 86 formed on one surface according to a pattern corresponding to the pattern of the electrodes to be inspected of the circuit device to be inspected is provided.
- a sheet probe 90 is arranged on one surface of a substrate 85 via an anisotropic conductive sheet 80.
- the anisotropic conductive sheet 80 has conductivity only in the thickness direction, or has a pressurized conductive portion that has conductivity only in the thickness direction when pressed in the thickness direction.
- Various structures are known as a strong anisotropic conductive sheet.
- Patent Document 2 and the like disclose an anisotropic conductive sheet obtained by uniformly dispersing metal particles in an elastomer. (Hereinafter referred to as “dispersion type anisotropic conductive sheet”).
- Patent Document 3 and the like disclose that conductive magnetic particles are non-uniformly distributed in an elastomer, so that a large number of conductive portions extending in the thickness direction and an insulating portion that insulates them from each other are provided.
- An anisotropic conductive sheet (hereinafter, referred to as “an unevenly-distributed anisotropic conductive sheet” t ⁇ ⁇ ) is disclosed.
- Patent Document 4 and the like disclose a surface of a conductive portion and an insulating portion. An unevenly distributed anisotropic conductive sheet in which a step is formed is disclosed.
- the sheet probe 90 has a flexible insulating sheet 91 made of, for example, a resin, and the insulating sheet 91 is provided with a plurality of electrode structures 95 extending in the thickness direction of the insulating circuit sheet. They are arranged according to a pattern corresponding to the pattern of the inspection electrodes.
- Each of the electrode structures 95 includes a projecting surface electrode portion 96 exposed on the surface of the insulating sheet 91 and a plate-shaped back electrode portion 97 exposed on the back surface of the insulating sheet 91.
- the insulating sheet 91 is integrally connected via a short-circuit portion 98 extending through the insulating sheet 91 in the thickness direction.
- Such a sheet probe 90 is generally manufactured as follows.
- a laminate 90A in which a metal layer 92 is formed on one surface of an insulating sheet 91 is prepared, and as shown in FIG. A through hole 98H penetrating in the thickness direction is formed.
- a resist film 93 is formed on the metal layer 92 of the insulating sheet 91.
- the metal layer 92 is subjected to electrolytic plating using the common electrode as a common electrode, so that the inside of the through-hole 98H of the insulating sheet 91 is filled with a metal deposit and short-circuited integrally with the metal layer 92.
- a portion 98 is formed, and a protruding surface electrode portion 96 connected to the short-circuit portion 98 is formed on the surface of the insulating sheet 91.
- the resist film 93 is removed from the metal layer 92, and as shown in FIG. 40 (d), a resist film 94A is formed on the surface of the insulating sheet 91 including the surface electrode portion 96, and the metal film 92 is formed.
- a resist film 94B is formed on the layer 92 in accordance with the pattern corresponding to the pattern of the back electrode portion to be formed, and the metal layer 92 is subjected to an etching process, as shown in FIG. The exposed portion of 92 is removed to form back electrode portion 97, thereby forming electrode structure 95.
- the surface electrode portion 96 of the electrode structure 95 of the sheet-like probe 90 is arranged on the circuit device to be inspected, for example, on the surface of the wafer so as to be positioned on the inspection electrode of the wafer. Is done.
- the anisotropic conductive sheet 80 is pressed by the back surface electrode portion 97 of the electrode structure 95 in the sheet probe 90.
- a conductive path is formed on the anisotropic conductive sheet 80 between the back electrode portion 97 and the test electrode 86 of the test circuit board 85 in the thickness direction thereof. Electrical connection between the electrode and the test electrode 86 of the test circuit board 85 is achieved.
- the anisotropic conductive sheet 80 is deformed in accordance with the degree of warpage of the wafer, so that a large number of inspected wafers can be inspected. Good electrical connection to each of the electrodes can be reliably achieved.
- the above-described inspection probe has the following problems.
- the step of forming the short-circuit portion 98 and the surface electrode portion 96 in the above-described method of manufacturing the sheet-like probe 90 since the plating layer grows isotropically by electrolytic plating, as shown in FIG.
- the distance W from the periphery of the surface electrode part 96 to the periphery of the short-circuit part 98 is equal to the protrusion height h of the surface electrode part 96.
- the diameter R of the obtained surface electrode portion 96 is considerably larger than twice the protruding height h.
- the electrodes to be inspected in the circuit device to be inspected are minute and extremely small and are arranged at a pitch, it is not possible to secure a sufficient distance between the adjacent electrode structures 95. As a result, in the obtained sheet probe 90, the flexibility of the insulating sheet 91 is lost, and it is difficult to achieve stable electrical connection to the circuit device to be inspected.
- the protrusion height h of the surface electrode portion 96 has a large variation, stable electrical connection to the circuit device to be inspected becomes difficult, while the diameter of the surface electrode portion 96 is large. If there is a gap, there is a possibility that adjacent surface electrode portions 96 may be short-circuited.
- the protruding height h of the surface electrode portion 96 there is a means for reducing the protruding height h of the surface electrode portion 96.
- the diameter of the short-circuit portion 98 (the cross-sectional shape is not circular) In such a case, the shortest length is indicated.)
- a method of reducing r that is, reducing the diameter of the through-hole 98H of the insulating sheet 91 can be considered, but the sheet-like probe obtained by the former method is considered. For one thing, it is difficult to reliably achieve stable electrical connection to the electrode under test.
- Patent Document 5 and Patent Document 6 respectively describe Proximal force A sheet-like probe has been proposed in which a large number of electrode structures having a tapered surface electrode portion whose diameter decreases toward the distal end are arranged.
- a resist film 93A and a front-side metal layer 92A are formed in this order on the surface of the insulating sheet 91, and a back-side metal layer 92B is laminated on the back surface of the insulating sheet 91.
- a laminate 90B is prepared.
- an electrode structure forming recess 90K having a tapered shape adapted to the short-circuit portion and the front surface electrode portion of the electrode structure to be formed is formed on the back surface of the laminate 90B.
- the surface-side metal layer 92A in the laminate 90B is subjected to plating treatment as an electrode, so that the metal is filled in the electrode structure forming recess 90K and the surface electrode portion 96 and A short 98 is formed.
- a rear surface electrode portion 97 is formed as shown in Fig. 42 (d).
- the front side metal layer 92A is formed on the surface of the insulating sheet material 91A having a thickness larger than that of the insulating sheet in the sheet probe to be formed, and the back surface of the insulating sheet material 91A is formed.
- a laminate 90C is prepared by laminating a back-side metal layer 92B on the substrate.
- a through-hole extending in the thickness direction communicating with each other is formed in each of the back surface side metal layer 92B and the insulating sheet material 91A in the laminated body 90C, thereby forming the laminated body.
- a plating process is performed using the surface-side metal layer 92A of the laminate 90C as an electrode.
- the metal is filled in the electrode structure forming recess 90K to form the surface electrode portion 96 and the short-circuit portion 98.
- FIG. 43 (d) As shown in FIG. 7, an insulating sheet material 91 having a required thickness is formed, and a surface electrode portion 96 is exposed.
- the back surface side electrode layer 97 is formed by etching the back side metal layer 92B, and the sheet probe 90 is obtained as shown in FIG. 43 (e).
- the surface electrode portion 96 since the surface electrode portion 96 is tapered, the surface electrode portion 96 having a small diameter and a high protruding height is connected to the surface electrode portion 96 of the adjacent electrode structure.
- the electrodes can be formed in a state where the distance from the electrodes 96 is sufficiently ensured, and the surface electrode portions 96 of the electrode structure 95 are provided with the electrode structure forming recesses 90K formed in the laminate as cavities. Since it is molded, the variation in the protruding height of the surface electrode portion 96 is small, and the V ⁇ electrode structure 95 is obtained.
- the diameter of the surface electrode portion in the electrode structure is equal to or smaller than the diameter of the short-circuit portion, that is, the diameter of the through hole formed in the insulating sheet.
- the electrode structure also loses the back surface force of the insulating sheet, and it is difficult to actually use the sheet probe.
- a holding portion is provided on a front electrode portion side in a tapered electrode structure having a small diameter shown in Patent Document 7, and the electrode structure falls off the back surface of the insulating sheet.
- a sheet-like probe which prevents such a problem.
- a five-layer laminated material 132 including a front-side metal layer 122, an insulating sheet 124, a first back-side metal layer 126, an insulating layer 128, and a second back-side metal layer 130.
- an opening 134 is provided in the second backside metal layer 130 of the laminate 132, the insulating layer 128 is etched through the opening 134, and a through hole is formed in the insulating layer 128. 136 are provided. Next, the first back side metal layer 126 exposed at the bottom of the through hole of the insulating layer 128 is etched to expose the insulating sheet 124 to the bottom of the through hole 136.
- the insulating sheet 124 is etched through the through-hole 136 of the first backside metal layer 126 to expose the front-side metal layer 122 at the bottom of the through-hole 136.
- the second backside metal layer 130, the insulating layer 128, and the first backside metal A through hole 138 extending in the thickness direction is formed in each of the layer 126 and the insulating sheet 124 so as to communicate with each other.
- a tapered shape adapted to a short-circuit portion and a surface electrode portion of an electrode structure to be formed is formed on the back surface of the laminated body 132.
- An electrode structure forming recess 90K having the form described above is formed.
- the metal is filled in the electrode structure forming recess 90K to form a surface.
- a surface electrode part 96 and a short-circuit part 98 are formed.
- the insulating sheet 124 is removed by etching the insulating sheet 124 to expose the first rear-side metal layer 126 (FIG. 44). (d)).
- the sheet-like probe 90 is obtained as shown in FIG.
- the electrode structure having a tapered shape on the back surface of the laminated body 90C that matches the short-circuit portion and the surface electrode portion of the electrode structure to be formed. Since the body forming recess 90K is formed, the tip diameter 92T of the electrode structure forming recess is smaller than the diameter of the opening 92H formed on the back surface of the laminate 90C.
- a pattern of a photoresist film 140 having an opening 140a at a portion where the through hole is formed is formed on one surface of the second backside metal layer 130, as shown in FIG.
- the insulating layer 128 and the insulating sheet 124 made of polyimide can be obtained by forming through holes.
- a through hole 142a is formed in which the front side metal layer 122 laminated on the insulating sheet 124 is exposed at the bottom, and a step of performing electroplating using the front side metal layer 122 as a common electrode is performed. Through this, an electrode structure is formed.
- the through-hole 142a is tapered as shown in FIG. The diameter gradually decreases.
- the insulating layer 128 whose surface is covered with the photoresist film 140 is used.
- the film thickness tl of the insulating layer 128 and the film thickness t2 of the insulating layer 128 are increased, there is a problem that the through hole 142a is not formed up to the surface side metal layer 122.
- the etching angle ⁇ in the etching process is generally considered to be 45 ° to 55 °, depending on the processing conditions.
- the total thickness of the insulating sheet 124 and the insulating layer 128, tl and t2 is determined by the opening diameter ⁇
- the through hole 142a cannot be reliably formed in the insulating layer.
- the thickness tl of the insulating sheet 124 or the thickness t2 of the insulating layer 128 is necessary to reduce the thickness tl of the insulating sheet 124 or the thickness t2 of the insulating layer 128. Therefore, the surface electrode portion having a large protrusion height is required. Was sometimes difficult to form.
- the thickness of the electrode structure of the sheet-shaped probe is reduced, for example, when the electrode to be inspected of the circuit device to be inspected is surrounded by an insulating layer having a large thickness, the electrode structure and the electrode structure may be reduced. Connection with the electrode to be inspected may be difficult.
- the thickness of the electrode structure is substantially equal to the sum of the thicknesses of the insulating sheet 124 and the insulating layer 128, and the thickness of the short-circuit portion is the same as the thickness of the insulating layer 128. . Therefore, in order to increase the thickness of the electrode structure, the thickness of the insulating layer must also be increased. There is a need to.
- a sheet-shaped probe having a large thickness of the insulating layer is a force having an effect of exhibiting high durability in repeated use durability.
- the amount of deformation in the thickness direction of the insulating layer is small, and therefore, the electrode structure In some cases, the amount of movement in the thickness direction became small.
- the decrease in the amount of movement of the sheet-shaped probe in the thickness direction of the electrode structure causes a decrease in the ability to absorb unevenness of the probe card using the sheet-shaped probe.
- the total force of the unevenness absorbing ability of the anisotropic conductive connector and the unevenness absorbing ability of the sheet-shaped probe is the unevenness absorbing ability of the probe card. Therefore, a decrease in the concave-convex absorbing ability of the sheet-shaped probe causes a decrease in the concave-convex absorbing ability of the probe card.
- Patent Document 8 As a means for increasing the unevenness absorbing ability, for example, a sheet-shaped connector as shown in Patent Document 8 is known.
- An anisotropic conductive connector comprising a composite conductive sheet provided as possible, and two anisotropic conductive elastomer sheets disposed on one surface and the other surface of the composite conductive sheet.
- the movable electrode force of the composite conductive sheet is movable in the thickness direction.
- the two anisotropic conductive elastomer sheets arranged on one side and the other side of the conductive sheet are compressed and deformed in conjunction with each other. It is expressed as a concave-convex absorbing ability, and therefore, a high concave-convex absorbing ability can be obtained.
- the thickness required for obtaining the required unevenness absorbing power can be ensured by the total thickness of the two sheets of the anisotropic conductive elastomer. Since a thin material can be used, high resolution can be obtained.
- anisotropic conductive connector has the following problems in practical use.
- the movable conductor of the composite conductive sheet is supported by both the insulating sheet and the anisotropic conductive elastomer sheet, and the composite conductive sheet and the anisotropic conductive elastomer sheet are supported. If the sheet is separated from the sheet, the movable conductor may fall off the insulating sheet, and it is practically extremely difficult to handle the composite conductive sheet alone.
- the arrangement pitch of the electrode structures of the sheet-like probe also becomes shorter.
- the force is usually 100 to 120 / ⁇ .
- the width of the insulating portion between them is, for example, 40-50. ⁇ m is required.
- a through hole is formed by etching as described above. Although it is necessary to increase the opening diameter ⁇ 1, if the opening diameter ⁇ 1 is increased while keeping the arrangement pitch of the electrode structures constant, insulation between adjacent electrode structures cannot be ensured.
- the thickness of the polyimide film is limited.
- the arrangement pitch of the electrode structures is 120 ⁇ m, and the opening diameter ⁇ 1 of the through hole is 70 ⁇ m.
- the thickness t of the polyimide film to be used must be 35 m or less, and the thickness t must be further reduced in order to make the opening diameter ⁇ 2 on the bottom side more than a certain level.
- the opening diameter ⁇ 1 of the through hole must be 100 m or more, and the electrode structure to be manufactured is required. Since it is difficult to establish insulation between the insulating layers adjacent to each other, it is impossible to increase the opening diameter in accordance with the thickness of the insulating layer 128.
- the electrode structure is formed in the tapered through-hole 142a as shown in FIG. 45, if the opening diameter ⁇ 2 on the back side in the etching direction is small, the electric resistance increases, so the opening of the small-diameter portion is increased. It is desirable that the diameter ⁇ 2 is as large as possible.
- the small diameter portion affects the electric resistance value, so that the variation of the electric resistance value between the electrode structures provided on the sheet-like probe is large. It is a concern.
- Patent Document 1 JP-A-7-231019
- Patent Document 2 JP-A-51-93393
- Patent Document 3 JP-A-53-147772
- Patent Document 4 JP-A-61-250906
- Patent Document 5 JP-A-11-326378
- Patent Document 6 JP-A-2002-196018
- Patent Document 7 Japanese Patent Application Laid-Open No. 2004-172589
- Patent Document 8 JP 2001-351702 A
- the present invention has been made in view of the above circumstances, and an object of the present invention is to form an electrode structure having a surface electrode portion having a small diameter, and to be 160 m or less. In addition, a stable electrical connection state can be reliably achieved even for a circuit device having electrodes formed at a small pitch of 120 / zm or less, particularly 100 m or less. An object of the present invention is to provide a sheet-like probe which can obtain high durability without falling off from an insulating layer.
- An object of the present invention is to provide an electrode having a small thickness of an insulating layer that has high durability and can reliably achieve a stable electrical connection state even in a circuit device having electrodes formed at a small pitch.
- An object of the present invention is to provide a sheet-like probe having a large thickness of a structure and a large irregularity absorbing ability.
- An object of the present invention is to provide a sheet-like probe which has an electrode structure movable in the thickness direction of an insulating layer, and is easy to handle by itself without the electrode structure falling off from the insulating layer.
- An object of the present invention is to form an electrode structure having a surface electrode portion with a small variation in protrusion height, and to provide a stable electric device even for a circuit device having electrodes formed at a small pitch.
- a sheet-shaped probe that can reliably achieve a connection state, and has a small thickness of the insulating layer that prevents the electrode structure from falling off the insulating layer, and achieves high durability It is an object of the present invention to provide a method capable of manufacturing the same.
- An object of the present invention is to provide a circuit device in which an electrode structure having a surface electrode portion with a small variation in protrusion height can be formed, electrodes are formed at a small pitch, and a variation in electrode height is large. High durability with an electrode structure that can reliably achieve a stable electrical connection state and that can move in the thickness direction of the insulating layer without the electrode structure falling off the insulating layer. It is an object of the present invention to provide a method capable of manufacturing a sheet-like probe which can obtain the above.
- the present invention can be applied to a burn-in test even if the inspection target is a large-area wafer with a diameter of 8 inches or more or a circuit device with an electrode to be inspected whose pitch is 100 ⁇ m or less. And a sheet-like probe capable of reliably preventing the electrode structure from being displaced from the electrode to be inspected due to a temperature change, thereby stably maintaining a good electrical connection state, and a method of manufacturing the same. For the purpose of doing!
- An object of the present invention is to provide a probe card provided with the above-mentioned sheet probe.
- An object of the present invention is to provide an inspection device for a circuit device provided with the above-mentioned probe card.
- a sheet-like probe having a contact film provided with a plurality of electrode structures extending through the insulating layer in a thickness direction thereof, the contact probes being arranged on the insulating layer so as to be spaced apart from each other in a surface direction thereof,
- Each of the electrode structures is a
- the insulating layer extends from the base end of the front electrode portion continuously through the insulating layer in the thickness direction, and comprises a short-circuit portion connected to the back electrode portion,
- the diameter of the base end of the surface electrode portion is larger than the diameter of the end of the short-circuit portion on the side in contact with the surface electrode portion.
- the thickness of the short-circuit portion is greater than the thickness of the insulating layer
- the short-circuit portion is movable in the thickness direction with respect to the insulating layer.
- the movable distance force of the electrode structure in the thickness direction of the insulating layer is 5 to 30 / zm.
- the method for producing a sheet-like probe of the present invention comprises:
- a recess for forming a surface electrode portion is formed on the back surface of the laminate,
- a plating process is performed using the surface side metal layer as an electrode, and a metal is filled in the recess for forming the surface electrode portion, thereby forming a surface electrode portion protruding from the surface of the insulating layer,
- an insulating layer composed of a plurality of resin layers having different etching rates in the thickness direction and a second back-side metal layer formed on the surface of the insulating layer are formed on the back side of the laminate.
- Metal plating is performed by using the surface side metal layer as an electrode, and the metal is After filling, the base force of the surface electrode portion continuously forms a short-circuit portion that extends through the insulating layer in the thickness direction,
- An etching process is performed on the second backside metal layer to form a backside electrode portion, and by removing the frontside metal layer and the insulating sheet, the frontside electrode portion and the first backside metal portion are removed. Expose the layers,
- the first back side metal layer is subjected to an etching process to form a holding portion extending outward along the surface of the insulating sheet continuously with a base end partial force of the surface electrode portion.
- an etching process is performed on the insulating layer to remove a surface side portion of the insulating layer, thereby reducing the thickness of the insulating layer;
- the method for producing a sheet-like probe of the present invention comprises:
- the resin layer on the side in contact with the surface electrode portion has a higher etching rate.
- the method for producing a sheet-like probe of the present invention comprises:
- At least one of the plurality of resin layers having different etching rates constituting the insulating layer is removed.
- the method for producing a sheet-like probe of the present invention comprises:
- the insulating layer is formed of a plurality of resin layers laminated via a metal layer, and the resin layer on the surface electrode portion side of the metal layer is removed by etching.
- a probe card for making an electrical connection between a circuit device to be inspected and a tester
- An inspection circuit board on which a plurality of inspection electrodes are formed corresponding to the electrodes to be inspected of the circuit device to be inspected;
- An anisotropic conductive connector arranged on the inspection circuit board
- a probe card for making an electrical connection between a circuit device to be inspected and a tester
- An inspection circuit board on which a plurality of inspection electrodes are formed corresponding to the electrodes to be inspected of the circuit device to be inspected;
- An anisotropic conductive connector arranged on the inspection circuit board
- the circuit device to be inspected is a wafer on which a large number of integrated circuits are formed.
- a frame plate in which a plurality of openings are formed corresponding to electrode regions where electrodes to be inspected are arranged in all or some integrated circuits formed on a wafer to be inspected;
- the circuit device inspection device of the present invention is a circuit device inspection device of the present invention.
- the diameter of the base end of the surface electrode portion of the electrode structure is larger than the diameter of the end of the short-circuit portion on the side in contact with the surface electrode portion. Even if the diameter of the surface electrode portion is small, the electrode structure does not fall off the insulating layer and is high. Durability is obtained.
- the thickness of the electrode structure is large, even if it is a circuit device to be inspected in which the electrode to be inspected is large in thickness and surrounded by an insulating layer, The connection between the electrode structure and the electrode to be inspected is easy.
- the surface electrode can be used. Insulation between adjacent electrode structures is ensured even if the diameter of the surface electrode part is larger than the diameter of the short-circuit part, and the electrode structure is insulated. It does not fall off the layer. Since the thickness of the insulating layer is small, the electrode structure can be easily moved in the thickness direction, and the ability of the sheet-shaped probe to absorb unevenness increases.
- the ability of the probe card using the sheet-shaped probe of the present invention to absorb irregularities is improved, and even if the electrodes to be inspected of the circuit device to be inspected have variations in height, all the electrodes to be inspected can be easily formed.
- the probe card can achieve electrical connection.
- the short-circuit portion of the electrode structure is movable in the thickness direction with respect to the insulating layer, the irregularity absorbing ability of the sheet-like probe increases. .
- the ability of the probe card using the sheet-shaped probe of the present invention to absorb irregularities is improved, and even if the electrodes to be inspected of the circuit device to be inspected have variations in height, all the electrodes to be inspected can be easily formed.
- the probe card can achieve electrical connection.
- the short-circuit portion of the electrode structure can move in the thickness direction with respect to the insulating layer, and the front surface electrode portion and the rear surface electrode portion of the electrode structure are closer to the short-circuit portion. Since the electrode structure does not fall off from the insulating layer, the sheet probe can be easily handled by itself. Therefore, in the probe card and circuit device inspection apparatus using the sheet probe, the inspection efficiency of the circuit device is improved because the anisotropic conductive connector and the sheet probe can be easily replaced.
- a plating process is performed using the surface side metal layer as an electrode, and a metal is filled in the recess for forming the surface electrode portion, thereby forming a surface electrode portion protruding from the surface of the insulating layer, Thereafter, an insulation layer composed of a plurality of resin layers having different etching rates in the thickness direction is laminated, and a short-circuit portion forming recess is formed in the insulating layer, and metal is filled, thereby forming a short-circuit portion.
- the insulating layer is etched to remove the surface side portion of the insulating layer and reduce the thickness of the insulating layer.
- the thickness force of the short-circuit portion A sheet-like probe larger than the thickness of the insulating layer can be advantageously manufactured.
- the insulating layer is composed of a plurality of resin layers having different etching rates and the etching rate of the resin layer in contact with the surface electrode portion is high, the resin layer on the side in contact with the surface electrode portion is easily removed. This makes it possible to advantageously manufacture a sheet-like probe in which the thickness of the short-circuit portion is larger than the thickness of the insulating layer.
- the insulating layer is formed of a plurality of resin layers laminated with a metal layer interposed therebetween, the resin layer on the side in contact with the surface electrode can be easily removed, and the thickness of the short-circuit portion is reduced. It is possible to advantageously manufacture a sheet-like probe having a thickness larger than the thickness of the probe.
- FIG. 1 is a cross-sectional view for illustrating a configuration of a sheet-like probe according to a first embodiment of the present invention
- FIG. 1 (a) is a plan view
- FIG. 1 (b) is X—X. It is sectional drawing by a line.
- FIG. 2 is an enlarged plan view showing a contact film in the sheet-like probe of FIG. 1.
- FIG. 3 is an explanatory cross-sectional view showing a structure of a sheet-like probe according to a first embodiment of the present invention.
- FIG. 4 is an explanatory cross-sectional view showing, on an enlarged scale, an electrode structure of a sheet-like probe according to a first embodiment of the present invention.
- FIG. 5 (a) is a cross-sectional view of a contact film supporting portion in the sheet-like probe of the present invention.
- (b) is a cross-sectional view of a support portion of the contact film in the sheet-like probe of the present invention.
- FIG. 6 is a view showing another embodiment of the sheet-like probe of the present invention, and FIG. Is a plan view, and FIG. 6B is a cross-sectional view taken along line XX.
- FIG. 7 is an explanatory cross-sectional view of a sheet-like probe according to a second embodiment of the present invention.
- FIG. 8 is an enlarged sectional view illustrating an electrode structure of a sheet-like probe according to a second embodiment of the present invention.
- FIG. 9 is an explanatory cross-sectional view showing, on an enlarged scale, an electrode structure of a sheet-like probe according to a first embodiment of the present invention.
- FIG. 10 is a partially enlarged cross-sectional view showing a method of manufacturing the sheet-like probe according to the first embodiment of the present invention.
- FIG. 11 is a cross-sectional view showing another embodiment of the sheet probe of the present invention.
- FIG. 12 is a cross-sectional view showing another embodiment of the sheet probe of the present invention.
- FIG. 13 is a partially enlarged cross-sectional view showing a method of manufacturing the sheet-like probe according to the first embodiment of the present invention.
- FIG. 14 is an explanatory cross-sectional view showing a configuration of a laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 15 is an explanatory cross-sectional view showing a configuration of a laminate for manufacturing a sheet-like probe according to the present invention.
- FIG. 16 is an explanatory cross-sectional view showing a configuration of a laminate for manufacturing a sheet-like probe according to the present invention.
- FIG. 17 is an explanatory cross-sectional view showing a configuration of a laminate for manufacturing the sheet probe according to the present invention.
- FIG. 18 is an explanatory cross-sectional view showing a configuration of a laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 19 is an explanatory cross-sectional view showing a configuration of a laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 20 is an explanatory cross-sectional view showing a configuration of a laminate for manufacturing the sheet probe according to the present invention.
- FIG. 21 is another configuration of a laminate for manufacturing the sheet-like probe according to the present invention. It is explanatory sectional drawing which shows.
- FIG. 22 is an explanatory cross-sectional view showing another configuration of the laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 23 is an explanatory cross-sectional view showing another configuration of the laminated body for manufacturing the sheet-like probe of the second embodiment according to the present invention.
- FIG. 24 is an explanatory cross-sectional view showing another configuration of the laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 25 is an explanatory cross-sectional view showing another configuration of the laminated body for manufacturing the sheet probe according to the present invention.
- FIG. 26 is an explanatory cross-sectional view showing another configuration of the laminated body for manufacturing the sheet-like probe of the second embodiment according to the present invention.
- FIG. 27 is a cross-sectional view showing an embodiment of a circuit device inspection apparatus of the present invention and a probe force used therein.
- FIG. 28 is a cross-sectional view showing another embodiment of a circuit device inspection device and a probe force used for the same according to the present invention.
- FIG. 29 is a cross-sectional view showing the probe card of FIG. 28 before and after assembly.
- FIG. 30 is an explanatory cross-sectional view showing, on an enlarged scale, a probe card in the inspection device shown in FIG. 28.
- FIG. 31 is an explanatory cross-sectional view showing, in an enlarged manner, a probe card in the inspection device shown in FIG. 29.
- FIG. 32 is a plan view of an anisotropic conductive connector in the probe card shown in FIGS. 30 and 28.
- FIG. 33 is a plan view showing a test wafer manufactured in an example.
- FIG. 34 is an explanatory view showing the position of the electrode area to be inspected of the integrated circuit formed on the test wafer shown in FIG. 33.
- FIG. 35 is an explanatory diagram showing an arrangement pattern of electrodes to be inspected of an integrated circuit formed on the test wafer shown in FIG.
- FIG. 36 is a plan view showing a frame plate in the anisotropic conductive connector manufactured in the example.
- FIG. 37 is an explanatory diagram showing a part of the frame plate shown in FIG. 36 in an enlarged manner.
- FIG. 38 is a plan view illustrating a shape of a metal frame plate of the sheet-like probe of the present invention.
- FIG. 39 is an explanatory cross-sectional view showing a configuration of an example of a conventional probe card.
- FIG. 40 is an explanatory cross-sectional view showing an example of manufacturing a conventional sheet-like probe.
- FIG. 41 is an explanatory cross-sectional view showing, in an enlarged manner, a sheet-like probe in the probe card shown in FIG. 40.
- FIG. 42 is an explanatory cross-sectional view showing another example of manufacturing a conventional sheet-like probe.
- FIG. 43 is an explanatory cross-sectional view showing another example of manufacturing a conventional sheet-like probe.
- FIG. 44 is a cross-sectional view illustrating a method of manufacturing the sheet-shaped probe of Comparative Example 1.
- FIG. 45 is a schematic diagram for explaining through holes of a conventional sheet-like probe.
- FIG. 1 is an explanatory cross-sectional view showing a configuration of a sheet-like probe according to a first embodiment of the present invention.
- FIG. 1 (a) is a plan view
- FIG. 1 (b) is a cross-sectional view taken along line X-X.
- FIG. 2 is an enlarged plan view showing a contact film in the sheet-like probe of FIG. 1
- FIG. 3 is a cross-sectional view for explaining the structure of the sheet-like probe according to the present invention
- FIG. FIG. 3 is an explanatory cross-sectional view showing an enlarged view of the electrode structure of the sheet-like probe according to the embodiment.
- the sheet probe 10 of the present embodiment is used to conduct an electrical inspection of each integrated circuit in a wafer state on a wafer of 8 inches or the like on which a plurality of integrated circuits are formed.
- the sheet probe 10 has a metal frame plate 25 having through holes formed at respective positions corresponding to respective integrated circuits on a wafer to be inspected.
- Contact film 9 is arranged in the through hole.
- the contact film 9 is supported by the metal frame plate 25 at a support portion 22 around the through hole of the metal frame plate 25.
- a contact film 9 made of an insulating film is formed on a metal frame plate 25, and the contact film 9 is supported by the metal frame plate 25.
- the contact film 9 has a structure in which the electrode structure 15 is formed through a flexible insulating layer 18B.
- the plurality of electrode structures 15 extending in the thickness direction of the insulating layer 18B are arranged apart from each other in the surface direction of the insulating layer 18B according to the pattern corresponding to the electrode to be inspected of the wafer to be inspected.
- each of the electrode structures 15 includes a protruding surface electrode portion 16 that is exposed on the surface of the insulating layer 18B and also protrudes the surface force of the insulating layer 18B.
- the electrode structure 15 includes a rectangular flat-plate-shaped back surface electrode portion 17 exposed on the back surface of the insulating layer 18B. ing.
- the electrode structure 15 further includes a short-circuit portion 18 that extends from the base electrode of the front electrode portion 16 and extends through the insulating layer 18B in the thickness direction thereof and is connected to the back electrode portion 17. ing. Further, the electrode structure 15 includes a circular ring plate-shaped holding portion 19 that extends radially outward along the surface of the insulating layer 18B continuously from the peripheral surface of the base end portion of the surface electrode portion 16. Have.
- the surface electrode portion 16 is tapered so as to be continuous with the short-circuit portion 18 and has a smaller diameter toward the distal end.
- a short-circuit portion 18 formed in a shape and continuous with the base end of the surface electrode portion 16 is tapered so that the diameter decreases from the back surface to the front surface of the insulating layer 18B.
- the diameter R6 of the holding portion 19 is larger than the diameter R3 of one end of the short-circuit portion 18 continuous with the base end.
- the thickness d of the insulating layer 18B is smaller than the thickness d3 of the short-circuit portion 18!
- the insulating layer 18B is not particularly limited as long as it is flexible and has insulating properties.
- a resin sheet or fiber made of polyimide resin, liquid crystal polymer, polyester, fluorine resin, or the like is knitted. It is possible to use a sheet or the like impregnated with the above resin for the cloth.Because the through hole for forming the short-circuit portion 18 can be easily formed by etching, it must be made of an etchable material. Particularly preferred is polyimide.
- the thickness d of the insulating layer 18B is not particularly limited as long as the insulating layer 18B is flexible, but is preferably 5 to 50 m, more preferably 10 to 30 / ⁇ . It is.
- the metal frame plate 25 is provided integrally with the insulating layer 18B, and may be provided on the surface of the insulating layer 18B in a state of being laminated with the insulating layer 18B, and may be included as an intermediate layer in the insulating layer 18B. .
- the metal frame plate 25 is disposed apart from the electrode structure 15, and the electrode structure 15 and the metal frame plate 25 are connected by the insulating layer 18B.
- the frame plate 25 is electrically insulated.
- the metal frame plate 25 is formed by removing a part of the second back side metal layer 17A.
- the metal constituting the second backside metal layer 17A to be the metal frame plate 25 is iron, copper, or the like.
- the second backside metal layer 17A can be easily formed by etching the second backside metal layer 17A with the metal frame plate 25 and the backside electrode portion 17.
- Iron-nickel alloy steels such as alloy 42, invar, and kovar, and copper, nickel and their alloys are preferred because they can be separated into two parts! /.
- metal frame plate 25 preferably single 1 X 10- 7 ⁇ 1 ⁇ 10- 5 ⁇ than it is preferred instrument for its linear thermal expansion coefficient used the following 3 X 10- 5 ⁇ And particularly preferably one IX
- Specific examples of the material constituting such a metal frame plate 25 include an Invar alloy such as Invar, an Elinvar alloy such as Elinvar, Sono-Inno, Kono-no,
- Alloys such as two alloys or alloy steels are exemplified.
- the thickness of the metal frame plate 25 is preferably from 3 to: LOO ⁇ m, more preferably from 5 to
- the metal frame plate supporting the sheet-like probe may not have sufficient strength.
- the thickness is excessively large, it may be difficult to separate and divide the second backside metal layer 17A into the metal frame plate 25 and the backside electrode portion 17 by etching in the manufacturing method described below. is there.
- the insulating sheet may be separated into a number of contact films 9 and supported on the metal frame plate 25 by etching or the like.
- the flexible contact films 9 holding the electrode structure 15 in the respective openings 26 of the metal frame plate 25 are independent from each other (FIG. 11 (a)) and partially independent (FIG. 11 (a)). (b)).
- Each of the contact films 9 has a flexible insulating layer 18B as shown in FIGS. 11A and 11B, and the insulating layer 18B extends in the thickness direction of the insulating layer 18B.
- a plurality of metal electrode structures 15 are spaced apart from each other in the surface direction of the insulating layer 18B in accordance with a pattern corresponding to the pattern of the electrode to be inspected in the electrode region of the wafer to be inspected. 9 is arranged so as to be located in the opening of the metal frame plate 25.
- the metal constituting the electrode structure 15 nickel, copper, gold, silver, noradium, iron, or the like can be used, and the electrode structure 15 is entirely made of a single metal.
- the surface electrode portion 16 and the short-circuit portion 18 may be made of different metals, even if they are made of an alloy of two or more metals or are made of a laminate of two or more metals.
- gold and silver are provided so as to prevent oxidation of the electrode portion and obtain an electrode portion having low contact resistance.
- a chemically stable and highly conductive metal film such as palladium may be formed.
- the ratio (R2ZR1) of the diameter R2 at the distal end to the diameter R1 at the proximal end of the surface electrode portion 16 may be 0.11-0.9. It is more preferably 0.15 to 0.6.
- the arrangement pitch of the electrode structure 15 should be 40 to 120 ⁇ m, preferably a force of 40 to 160 ⁇ m, which is the same as the pitch of the electrodes to be inspected of the circuit device to be connected. In particular, it is more preferably 40 to 100 m.
- Circuit devices to be connected by satisfying such conditions are those having small and minute electrodes with a pitch of 120 m or less and those having extremely small electrodes with a pitch of 100 m or less. Even so, a stable electrical connection state to the circuit device can be reliably obtained.
- the diameter R 1 of the base end of the surface electrode portion 16 is preferably 30 to 70% of the pitch of the electrode structure 15, more preferably 35 to 60%.
- the ratio hlZRl of the protruding height h1 to the diameter R1 at the base end of the surface electrode portion 16 is preferably 0.2 to 0.8, more preferably 0.2 to 0.8. 25 to 0.6.
- the circuit device to be connected can be a device having small and minute electrodes with a pitch of 120 m or less, or a device having extremely small electrodes with a pitch of 100 m or less. Even so, the electrode structure 15 having a pattern corresponding to the electrode pattern can be easily formed, and a stable electrical connection state to the circuit device can be more reliably obtained.
- the diameter R1 of the base end of the surface electrode portion 16 is a force set in consideration of the above conditions, the diameter of the electrode to be connected, and the like, for example, 30 to 80 ⁇ m, and preferably 30 to 60 ⁇ m. m.
- the height of the protruding height hi of the surface electrode part 16 is a stable electrical connection to the electrode to be connected. From the viewpoint that continuity can be achieved, it is preferably 12 to 50 / ⁇ , more preferably 15 to 30 ⁇ m.
- the outer diameter R5 of the back electrode portion 17 is larger than the diameter R4 of the back surface side of the insulating layer 18B of the short circuit portion 18 connected to the back electrode portion 17, and It is sufficient that the pitch is smaller than the pitch of the structure 15, but it is preferable that the pitch is as large as possible.This ensures stable electrical connection to, for example, an anisotropic conductive sheet. can do.
- the thickness d2 of the back electrode portion 17 is preferably 10 to 80 m, more preferably 12 to 60 m, from the viewpoint that the strength is sufficiently high and excellent repetition durability is obtained. is there.
- the ratio R3ZR4 of the diameter R3 on the front surface side of the insulating layer 18B to the diameter R4 on the back surface side of the insulating layer 18B of the short-circuit portion 18 is preferably 0.2 to 1, more preferably 0.2 to 1. 3 to 0.9.
- the diameter R3 of the surface of the insulating layer 18B of the short-circuit portion 18 is 10
- Preferably it is ⁇ ⁇ ⁇ 50%, more preferably 15-45%.
- the thickness d3 of the short-circuit portion 18 is preferably 10 to 60 m, more preferably 15 to 60 m.
- the difference h2 between the thickness d3 of the short-circuit portion 18 and the thickness d of the insulating layer 18B is 5 to 30 / ⁇ , preferably 10 to 25 / ⁇ .
- the diameter R6 of the holding portion 19 is preferably 30 to 70% of the pitch of the electrode structure 15, and more preferably 40 to 60%.
- the thickness dl of the holding portion 19 is preferably 3 to 50 ⁇ m, more preferably 4 to 4 ⁇ m.
- the metal frame plate 25 and the back surface electrode portion 17 may also be formed of different metal members.
- the metal frame plate 25 has a structure in which the plurality of through holes 12 are formed of a metal material formed by, for example, punching, laser processing, or the like.
- the back surface electrode portion 17 has an electrolytic cell as shown in Figs. 17 (b) and 17 (c). It is made of a metal material formed as the back electrode 17 by filling the metal into each short hole forming recess 18K and each pattern hole 29H of the resist film 29A by applying a tacking process. .
- the metal frame plate 24 and the back surface electrode portion 17 are made of different metal members, there are no restrictions on the type of metal, thickness, and the like of the metal frame plate 24.
- the metal frame plate 24 can be formed of any metal type and any thickness in consideration of availability and the like.
- the back electrode portion 17 has a metal member force different from that of the metal frame plate 24, the back electrode portion 17 is not limited to the metal as the metal frame plate 24, and is preferably a metal, For example, copper or the like having excellent electrical characteristics can be used as a constituent metal of the back electrode 17.
- the constituent metal of the metal member forming the metal frame plate 24 and the constituent metal of the metal member forming the back electrode portion 17 may be formed of different metal types. .
- constituent metal of the metal member forming the metal frame plate 24 and the constituent metal of the metal member forming the back electrode portion 17 may be formed of the same metal type!
- a rigid plate-like ring-shaped support member 2 is provided on the periphery of the sheet probe 10.
- the material of the support member 2 include invar-type alloys such as invar and spur-invar, elinvar-type alloys such as elinvar, low thermal expansion metal materials such as kovar and 42 alloy, alumina, silicon carbide, and silicon nitride. Ceramic materials are examples.
- the thickness of the support member 2 is preferably 2 mm or more.
- the thickness of the ring-shaped support member 2 in such a range, the influence of the difference in the coefficient of thermal expansion between the metal frame plate 25 and the ring-shaped support member 2, that is, the electrode structure due to the temperature change The displacement between the body and the electrode to be inspected can be further suppressed.
- the sheet probe 10 has a metal frame plate 25 having through holes formed at positions corresponding to each integrated circuit on a wafer to be inspected.
- the contact film 9 is disposed.
- the contact film 9 is supported by the support portions 22 around the through holes of the metal frame plate 25 and the metal frame plate 2
- the structure may be such that the support portion 22 is formed in a state where the metal frame plate 24 is sandwiched by the resin insulating layer 18B.
- Such a sheet probe 10 holds the electrode structure 15 at each opening of the contact film.
- the flexible contact films 9 may be arranged in a state independent from each other (FIG. 11A) or in a state partially independent (FIG. 11B).
- such a sheet probe 10 is bonded and fixed to the metal frame plate 24 force support member 2 via an adhesive 8.
- Examples of the material of the ring-shaped support member 2 include invar type alloys such as invar and super invar, elinvar type alloys such as elinvar, low thermal expansion metal materials such as kovar and 42 alloy, alumina, silicon carbide, silicon nitride and the like. Ceramic materials.
- the sheet-like probe 10 By supporting the sheet-like probe 10 with such rigidity by such a support member 2, in the probe card described later, for example, a hole formed in a frame plate and a guide pin provided in the probe card are connected.
- the electrode structure 15 provided on the contact film 9 of the sheet-like probe 10 by fitting the support member 2 and the circumferential step provided on the periphery of the probe card to each other. Can easily be aligned with the electrode to be inspected of the object to be inspected ⁇ the conductive portion of the anisotropic conductive connector.
- the electrode structure 15 is formed with the holding portion 19 in which the base partial force of the surface electrode portion 16 also extends continuously along the surface of the insulating layer 18B. Therefore, even if the diameter of the front surface electrode portion 16 is small, since the holding portion 19 is supported on the surface of the insulating layer 18B, the electrode structure 15 also releases the rear surface force of the insulating layer 18B. High without dropping! Durability is obtained.
- a method of manufacturing the sheet-like probe 10 having a structure in which the insulating layer 18B is supported by the metal frame plate 25, as shown in FIG. 14 (a), includes the insulating sheet 11 and the insulating sheet 11.
- 11 A laminated body 10A including a front-side metal layer 16A formed on the front surface of the substrate and a first back-side metal layer 19A formed on the back surface of the insulating sheet 11 is prepared.
- the total thickness of the thickness of the insulating sheet 11 and the thickness of the first backside metal layer 19A is equal to the protruding height of the surface electrode portion 16 in the electrode structure 15 to be formed. It is assumed to be.
- the material of the insulating sheet 11 is not particularly limited as long as it is flexible and has insulating properties.
- the material is made of polyimide resin, liquid crystal polymer, polyester, fluorine resin, or the like.
- a resin sheet, a sheet in which the above-mentioned resin is impregnated into a fiber-knitted cloth, or the like can be used.
- a through hole for forming the surface electrode portion 16 can be easily formed by etching. It is preferably made of an etchable material, and particularly preferably polyimide.
- the thickness of the insulating sheet 11 is not particularly limited as long as the insulating sheet 11 is flexible, but is preferably 10 to 50 ⁇ m, more preferably 10 to 25 ⁇ m. is there.
- Such a laminate 10A may be, for example, a commercially available laminated polyimide sheet having a metal layer made of, for example, copper laminated on both surfaces.
- a protective film 40A is laminated on the entire surface of the front side metal layer 16A, and a surface of the first rear side metal layer 19A is An etching resist film 12A in which a plurality of pattern holes 12H are formed is formed according to a pattern corresponding to the pattern of the electrode structure 15 to be formed.
- a material for forming the resist film 12A various materials used as a photoresist for etching can be used.
- the first back side metal layer 19A is etched to remove the portion exposed through the pattern hole 12H of the resist film 12A, thereby removing the portion, as shown in FIG. 14 (c).
- a plurality of pattern holes 19H communicating with the pattern holes 12H of the resist film 12A are formed in the first backside metal layer 19A.
- the insulating sheet 11 was exposed by performing an etching process on portions exposed through the respective pattern holes 12H of the resist film 12A and the respective pattern holes 19H of the first backside metal layer 19A. By removing the portion, the insulating sheet 11 is removed as shown in FIG. Then, a plurality of tapered through holes 11H each having a smaller diameter as it goes toward the back surface of the insulating sheet 11 and communicating with the pattern hole 19H of the first back side metal layer 19A are formed.
- a plurality of recesses 10K for forming a surface electrode portion in which the pattern holes 19H of the first back side metal layer 19A and the through holes 11H of the insulating sheet 11 are communicated with the back surface of the laminate 10A, respectively. Is formed.
- an etching agent for etching the first backside metal layer 19A is appropriately selected according to the material constituting these metal layers, and the metal layer is made of, for example, copper.
- an aqueous solution of ferric Shiojiri can be used.
- an etching solution for etching the insulating sheet 11 an amine-based etching solution, a hydrazine-based aqueous solution, a potassium hydroxide solution, or the like can be used. Accordingly, a tapered through hole 11H having a smaller diameter as going from the back surface to the front surface can be formed in the insulating sheet 11.
- the resist film 12A is removed from the laminate 10A on which the recesses 10K for forming surface electrode portions are formed as described above, and then, as shown in FIG.
- a resist film 13A for plating is formed in which a plurality of pattern holes 13H are formed in accordance with a pattern corresponding to the pattern of the holding portion 19 in the electrode structure 15 to be formed.
- a material for forming the resist film 13A various materials used as a photoresist for plating can be used, and a photosensitive dry film resist is preferable!
- the laminate 10A is subjected to electrolytic plating using the surface-side metal layer 16A as an electrode to deposit metal in each of the surface electrode portion forming recesses 10K and in each of the pattern holes 13H of the resist film 13A.
- the plurality of surface electrode portions 16 and the holding portions 19 extending outward along the back surface of the insulating sheet 11 continuously at the base ends of each of the surface electrode portions 16 are formed. Is formed.
- each of the holding portions 19 is in a state of being connected to each other via the first backside metal layer 19A.
- the resist film 13A is peeled off.
- an insulating layer 18B is formed on the laminate 10A on which the surface electrode portion 16 and the holding portion 19 are formed so as to cover the first backside metal layer 19A and the holding portion 19 as shown in FIG. Is formed, and a second backside metal layer 17A is formed on the surface of the insulating layer 18B to form a laminate 10B.
- the insulating layer 18B is composed of a plurality of resin layers having different etching rates in the thickness direction.
- an etchable polymer material is used, and preferably, polyimide is used.
- a photosensitive polyimide solution a polyimide precursor solution, a liquid polyimide or varnish obtained by diluting a polyimide precursor or a low-molecular-weight polyimide with a solvent,
- thermoplastic polyimide (2) thermoplastic polyimide
- Etc. can be used.
- the solution of the photosensitive polyimide, the solution of the polyimide precursor, and the liquid polyimide or varnish obtained by diluting the polyimide precursor or the low-molecular-weight polyimide with a solvent are coated with the solution because of low viscosity. It can be cured (polymerized) after application, so that it is accompanied by volume shrinkage due to evaporation and polymerization of the solvent.
- a polyimide precursor solution, a polyimide precursor or a liquid polyimide or varnish obtained by diluting a low-molecular-weight polyimide with a solvent as described in (1) above are added to the laminate 10A. It is preferable to form the insulating layer 18B by coating and curing.
- thermoplastic polyimide of the above (2) is thermoplastic polyimide of the above (2)
- the solvent is evaporated to form an insulating layer 18B, or
- the laminated body 10A is integrally formed to form an insulating layer 18B,
- a solution of the photosensitive polyimide of (1), a solution of polyimide precursor, a liquid polyimide or varnish obtained by diluting the polyimide precursor or low-molecular-weight polyimide with a solvent is used.
- the insulating layer 18B can be formed.
- the polyimide layer formed of the thermoplastic polyimide of (2) and the polyimide fill of (3) have different etching rates.
- the etching rate of a polyimide film is lower than that of a polyimide layer formed by curing the above-mentioned polyimide.
- the polyimide film 218B is coated with the photosensitive polyimide solution (1), the polyimide precursor solution, the polyimide precursor
- the polyimide layer 218A formed by curing a liquid polyimide or varnish obtained by diluting a molecular polyimide with a solvent, or the polyimide layer 218A formed of the thermoplastic polyimide of the above (2) is laminated on the laminate 10A.
- the insulating layer 18B is formed by integrally forming.
- the insulating layer 18B has a structure in which resin layers having different etching rates are stacked in the thickness direction.
- a polyimide layer 218A is provided so as to cover the first backside metal layer 19A and the holding portion 19, and is provided on the second backside metal layer 17A side.
- the insulating layer 18B may be formed by forming the polyimide film 218B, laminating the laminated body 10A via the polyimide layer 218A, and integrally forming the laminated body.
- a polyimide film 218B and a polyimide layer 218A are formed on the second back side metal layer 17A side, and the first layer is formed via the polyimide layer 218A.
- Back side metal layer The insulating layer 18B may be formed by laminating and integrally forming the laminated body 10A so as to cover the holding section 19A and the holding section 19A.
- a polyimide film 218B is laminated, whereby the insulation is increased.
- the layer 18B has a structure in which a plurality of resin layers having different etching rates are stacked in the thickness direction (see FIG. 10A).
- a laminated polyimide sheet having a metal layer made of, for example, 42 alloy is laminated on one surface.
- the laminate 10A via the polyimide layer 218A, the insulating layer 18B and the second backside metal layer 17A can be formed (see FIG. 10B).
- the second backside metal layer 17A has a thickness equal to the thickness of the metal frame plate 25 to be formed.
- a plurality of layers are formed on the surface of the second backside metal layer 17A with respect to the laminate 10B according to the pattern corresponding to the pattern of the electrode structure 15 to be formed.
- An etching resist film 28A in which the pattern holes 28H are formed is formed.
- various materials used as a photoresist for etching can be used.
- the second back side metal layer 17A is subjected to an etching treatment on a portion exposed through the pattern hole 28H of the resist film 28A, and the exposed portion is removed.
- a plurality of pattern holes 17H communicating with the pattern holes 28H of the resist film 28A are formed in the second backside metal layer 17A.
- the portion of the insulating layer 18B exposed through the respective pattern holes 28H of the resist film 28A and the respective through holes 17H of the second backside metal layer 17A is subjected to an etching treatment to expose the exposed portion. Is removed.
- the diameter of the insulating layer 18B becomes smaller as it goes from the back surface to the surface of the insulating layer 18B, which communicates with the pattern hole 19H of the first back metal layer 19A.
- a plurality of tapered through holes 18H with the surface electrode portion 16 exposed at the bottom surface are formed.
- an etching agent for etching second back side metal layer 17A is appropriately selected according to the material constituting these metal layers.
- the etching solution for etching the insulating layer 18B As the etching solution for etching the insulating layer 18B, the etching solution used for etching the insulating sheet 11 described above can be used.
- the resist film 28A is removed from the laminated body 10B in which the recess 18K for forming a short-circuit portion is formed as described above, and then, as shown in FIG. 17B, the laminated body 10B is provided with the second back surface.
- a pattern resist film 29 # having a plurality of pattern holes 29 # is formed in accordance with a pattern corresponding to the pattern of the back electrode portion 17 in the electrode structure 15 to be formed.
- the laminated body 10B is subjected to electrolytic plating using the surface-side metal layer 16A as an electrode to fill a metal into each of the recesses 18K for forming short-circuit portions and each of the pattern holes 29 # of the resist film 29 #.
- the short-circuit portion 18 extending continuously through the base electrode of each of the surface electrode portions 16 in the thickness direction thereof and the insulating layer 18B of each of the short-circuit portions 18 are formed.
- the back surface electrode portion 17 connected to the back surface side is formed.
- each of the back surface electrode portions 17 is in a state of being connected to each other via the second back surface side metal layer 17A.
- the resist film 29 # is also removed by the laminate 10B formed with the front electrode portion 16, the holding portion 19, the short-circuit portion 18 and the back electrode portion 17 formed thereon. Thereafter, as shown in FIG. 18 (a), the portion of the second back side metal layer 17A to be the back surface electrode portion 17 and the metal frame plate 25 is covered, and the second back side metal layer 17A to be removed is formed.
- a patterned etching resist film 29 ⁇ having a pattern hole 29 ⁇ is formed according to the pattern corresponding to the portion.
- the protective film 40A provided on the front side metal layer 16A is removed, and the front side metal layer 16A and the second back side metal layer 17A are subjected to etching.
- the front side metal layer 16A is removed, and the portion of the second back side metal layer 17A exposed by the pattern hole 29K is removed to form the opening 26.
- a plurality of back electrode portions 17 and a metal frame plate 25 separated from each other are formed.
- the resist film 17E is covered so as to cover the back surface electrode portion 17, the metal frame plate 25, and the opening portion 26.
- various materials used as a photoresist for etching can be used.
- a protective film 40B is laminated on the entire surface of the resist film 17E.
- the insulating sheet 11 was subjected to an etching treatment to remove the entirety thereof.
- a laminated body 10C exposing the front electrode portion 16 and the first back side metal layer 19A was obtained. Thereafter, as shown in FIG. 19B, a patterned resist film 14A for etching is formed so as to cover the surface electrode portion 16 and the portion to be the holding portion 19 in the first backside metal layer 19A. I do.
- the first back surface side metal layer 19A is subjected to an etching treatment to remove an exposed portion, thereby obtaining a peripheral surface of a base end portion of the front electrode portion 16 as shown in FIG. 19 (c).
- the holding portion 19 is formed so as to extend radially outward along the surface of the insulating layer 18B continuously from the above, whereby the electrode structure 15 is formed.
- the insulating layer 18B is subjected to an etching treatment to remove the surface side portion of the insulating layer 18B to reduce the thickness of the insulating layer.
- the removal is performed by etching the surface side portion of the insulating layer 18B using the difference in the etching rate of the resin layer forming the insulating layer.
- the surface side portion of the insulating layer 18B is
- the polyimide layer 218A formed of the thermoplastic polyimide of the above (2) is formed, and the back side of the insulating layer 18B is formed of the polyimide film 218B of the above (3).
- the surface layer portion of the polyimide layer 218A can be easily applied to the insulating layer 18B.
- B force can also be removed by etching.
- the force that leaves the polyimide layer 18C between the holding portion 19 of the electrode structure 15 and the insulating layer 18B is not essential to leave the polyimide layer 18C in this portion.
- the polyimide layer 18C between the retainer 19 and the insulating layer 18B may be removed.
- the resist film 14A is removed, and a resist film 17F is formed on the upper surface of the laminate 10C so as to expose a part of the metal frame plate 25. In this state
- FIG. 7 is an explanatory cross-sectional view showing the configuration of the sheet-like probe according to the second embodiment of the present invention
- FIG. 8 is an enlarged view of the electrode structure of the sheet-like probe according to the second embodiment of the present invention.
- FIG. 2 is an explanatory sectional view shown in FIG.
- each of the electrode structures 15 includes a protruding surface electrode portion 16 that is exposed on the surface of the insulating layer 18B and protrudes from the surface of the insulating layer 18B.
- the electrode structure 15 includes a rectangular flat-plate-shaped back surface electrode portion 17 exposed on the back surface of the insulating layer 18B.
- the electrode structure 15 further includes a short-circuit portion 18 that extends from the base electrode of the front electrode portion 16 and extends through the insulating layer 18B in the thickness direction thereof and is connected to the back electrode portion 17. ing. More In addition, the electrode structure 15 includes a circular ring plate-shaped holding portion 19 that extends radially outward along the surface of the insulating layer 18B continuously from the peripheral surface of the base end portion of the surface electrode portion 16. ing.
- the surface electrode portion 16 is tapered so as to be continuous with the short-circuit portion 18 and have a smaller diameter toward the distal end.
- a short-circuit portion 18 formed in a shape and continuous with the base end of the surface electrode portion 16 is tapered so that the diameter decreases from the back surface to the front surface of the insulating layer 18B.
- the diameter R6 of the holding portion 19 is larger than the diameter R3 of one end of the short-circuit portion 18 continuous with the base end.
- the thickness d of the insulating layer 18B is smaller than the thickness d3 of the short-circuit portion 18. Further, the short-circuit portion 18 is movably held in a through hole 318 provided in the insulating layer 18B.
- Diameter R7 of through hole 318 of insulating layer 18B is smaller than diameter R6 of holding portion 19 of electrode structure 15 and outer diameter R5 of back electrode portion 17, and insulating layer 18B of short-circuit portion 18 is formed. It is preferable that the diameter is larger than the diameter R4 on the back side.
- the short-circuited portion 18 of the electrode structure 15 is held on the insulating layer 18B so as to be movable in the thickness direction without falling off from the insulating layer 18B.
- the movable distance of the electrode structure in the thickness direction of the insulating layer is substantially equal to the difference h2 between the thickness d3 of the short-circuit portion 18 and the thickness d of the insulating layer 18B.
- the movable distance of the electrode structure in the thickness direction of the insulating layer is preferably 5 to 30 / ⁇ , more preferably 10 to 25 ⁇ m.
- the resist film 13A is peeled off from the laminate 10A.
- thermoplastic polyimide Apply and cure the solution, or
- the polyimide layer 218A is formed by laminating the thermoplastic polyimide film (3) and hot-pressing it.
- one side has a second back side metal layer 17A, for example, a metal layer made of 42 alloy, and the other side has a metal layer 219.
- the laminated polyimide sheet on which is formed is laminated so that the surface on the metal layer 219 side is in contact with the polyimide layer 218A of the laminate 10A, and the polyimide layer 218A is cured.
- FIGS. 21 (a) and 20 (b) a laminated body 10B having the metal layer 219 in the insulating layer 18B and the second back side metal layer 17A laminated thereon is obtained.
- a pattern hole 17H of the second backside metal layer 17A is formed on the back surface of the laminate 10B, and the exposed portion is removed by etching the insulating layer 218B through the pattern hole 17H to remove the metal layer. Expose 219.
- the metal layer 219 is removed by etching, and then the insulating layer 218A is etched so that the pattern hole 17H of the second backside metal layer 17A and the through hole 18H of the insulating layer 18B are communicated.
- a plurality of short-circuit portion forming recesses 18K are formed.
- a resist for plating in which a plurality of pattern holes 29H are formed in accordance with the pattern corresponding to the pattern of the backside electrode portion 17 in the electrode structure 15 to be formed.
- a laminate 10B having the film 29A was obtained (see FIGS. 22 (b) and 23 (a)).
- a thin metal layer 220 is formed on the inner wall of the short-circuit portion forming recess 18K of the laminate 10B.
- the thin metal layer 220 is preferably formed of an easily-etchable metal having a high etching rate, and copper can be used as the easily-etchable metal material.
- a metal thin film is formed on the inner wall of the short-circuit portion forming recess After the layer 220 is formed, the metal is filled in the short-circuit portion forming recess 18K by plating to form the short-circuit portion 18 (see FIGS. 22 (c) and 23 (c)).
- the metal thin layer 220 is formed from the easily-etchable metal material, the metal having a low etching rate is filled by plating to form the short-circuit portion 18, thereby forming the electrode structure 15. Then, only the thin metal layer 220 can be easily removed by etching.
- the diameter R4 of the short side portion 18 of the electrode structure 15 on the back surface side of the insulating layer 18B is smaller than the diameter R7 of the through hole 318 of the insulating layer 18B, and the electrode structure 15
- the body 15 can be held movably in the thickness direction.
- an electroless plating method, an electrolytic plating method, a sputtering method, or a combination of these methods may be performed a plurality of times to form the thin metal layer 220. .
- the thickness of the thin metal layer 220 is preferably 3 ⁇ m or less, more preferably 1 ⁇ m or less.
- a laminated body 10C was formed in which a holding portion 19 was formed which continuously extends radially outward along the surface of the insulating layer 18B from the peripheral surface of the base end portion of the surface electrode portion 16.
- the insulating layer 18B is subjected to an etching treatment to remove the surface side portion of the insulating layer 18B, thereby reducing the thickness of the insulating layer.
- the thickness of the insulating layer 18B can be controlled in comparison with the method of controlling the thickness of the insulating layer 18B using the difference in the etching rate of the resin layer. It can be done easily.
- the polyimide layer 18C between B is also easily removed, and the thickness of the insulating layer 18B can be easily and uniformly controlled over the entire surface of the insulating layer 18B.
- the laminated body 10C in which the surface side portion of the insulating layer 18B was removed to reduce the thickness of the insulating layer was subjected to an etching treatment, whereby the metal layer 21B was formed.
- etching agent for etching the metal layer 219 and the thin metal layer 220 It is appropriately selected according to the material constituting these metal layers.
- these metal layers are made of, for example, copper, an aqueous ferric chloride solution can be used.
- the etching rate of the metal constituting the metal layer 219 and the thin metal layer 220 is increased. Only the layer 219 and the thin metal layer 220 can be removed, and the electrode structure 15 can be left without being etched.
- the metal constituting the metal layer 219 and the thin metal layer 220 copper is preferred, and the metal constituting the electrode structure 15 is preferably nickel. It is easily achieved that only the thin metal layer 220 is removed and the electrode structure 15 remains without being etched.
- the resist film 14A is removed, and a resist film 17F is formed on the upper surface of the laminated body 10C so as to expose a part of the metal frame plate 25, as shown in FIG. .
- a resist film 17F is formed on the upper surface of the laminated body 10C so as to expose a part of the metal frame plate 25, as shown in FIG. .
- etching the insulating layer 18B a part of the metal frame plate 25 is exposed as shown in FIG.
- the resist film 17F is removed from the surface of the insulating layer 18B, and the protective film 40B and the resist film 17E are removed from the back surface and the back surface electrode portion 17 of the insulating layer 18B. 10 is obtained.
- the surface of the insulating layer 18B is removed by using the above-mentioned metal layer 219 to remove the metal layer 219 by etching.
- a method of removing the side portions to reduce the thickness of the insulating layer is not shown, but can be applied to the method of manufacturing the sheet-like probe of the first embodiment.
- FIG. 27 is an explanatory cross-sectional view showing a configuration of an example of a circuit device inspection device according to the present invention.
- the circuit device inspection device integrates each of a plurality of integrated circuits formed on a wafer. This is for performing an electrical inspection of a circuit in a state of a wafer.
- the inspection device for this circuit device includes a probe card 1 (electrically connecting the insulating layer 18B to the metal frame plate 25) for electrically connecting each of the electrodes 7 to be inspected of the wafer 6 to be inspected to the tester. Supporting sheet-like probe).
- a probe card 1 electrically connecting the insulating layer 18B to the metal frame plate 25 for electrically connecting each of the electrodes 7 to be inspected of the wafer 6 to be inspected to the tester. Supporting sheet-like probe).
- this probe card 1 as shown also in an enlarged manner in FIG. 30, a plurality of test electrodes 21 are formed in accordance with the pattern corresponding to the pattern of the test electrode 7 in all the integrated circuits formed on the wafer 6. It has an inspection circuit board 20 formed on the front surface (the lower surface in the figure).
- an anisotropic conductive connector 30 is disposed on the surface of the inspection circuit board 20, and the surface (the lower surface in the figure) of the anisotropic conductive connector 30 is formed on the wafer 6
- a sheet probe 10 having a configuration shown in FIG. 1 in which a plurality of electrode structures 15 are arranged according to a pattern corresponding to the pattern of the electrode 7 to be inspected in the integrated circuit of FIG.
- the sheet probe 10 is held by guide pins 50 in a state where the anisotropic conductive connector 30, the electrode structure 15, and the conductive portion 36 are fixed to each other.
- a pressure plate 3 for pressing the probe card 1 downward is provided on the back surface (upper surface in the figure) of the inspection circuit board 20 in the probe card 1, and a wafer 6 is placed below the probe card 1.
- a wafer mounting table 4 is provided, and a heater 5 is connected to each of the pressure plate 3 and the wafer mounting table 4.
- such an inspection apparatus for a circuit device may be configured such that the sheet-like probe 10 includes an outer edge portion of a metal frame plate 25 (including the metal frame plate 24) as necessary.
- the support member 2 is used in a fixed state.
- such a circuit device inspection device has a configuration as shown in Figs. 29 (a) and 29 (b), and is formed on the frame plate 31 of the anisotropic conductive connector 30. The positioning is performed by fitting the through-hole with the guide pin 50.
- the positioning of the sheet-like probe 10 is achieved by fitting the support member 2 adhered to the outer edge of the metal frame plate 25 (including the metal frame plate 24) and the concave portion of the pressing plate 3 into each other. You can do it! /
- the substrate material constituting the inspection circuit board 20 various conventionally known substrate materials can be used, and specific examples thereof include a glass fiber reinforced epoxy resin and a glass fiber reinforced phenol resin.
- Composite resin materials such as glass fiber reinforced polyimide resin, glass fiber reinforced bismaleimide triazine resin, glass, silicon dioxide, alumina, etc. Ceramic materials and the like can be mentioned.
- the linear thermal expansion coefficient is 3 X
- the anisotropic conductive connector 30 has a plurality of openings 32 corresponding to the electrode regions where the electrodes 7 to be inspected are arranged in all the integrated circuits formed on the wafer 6 as the circuit device to be inspected. And an anisotropic conductive sheet 35 which is arranged in the frame plate 31 so as to cover one opening 32 and is fixed and supported at the opening edge of the frame plate 31. It is configured.
- the material forming the frame plate 31 is not particularly limited as long as the frame plate 31 does not easily deform and has a rigidity enough to maintain its shape stably. Various materials such as ceramic materials and resin materials can be used. When the frame plate 31 is made of, for example, a metal material, an insulating coating may be formed on the surface of the frame plate 31. ,.
- metal material constituting the frame plate 31 include metals such as iron, copper, nickel, titanium, and aluminum, and alloys or alloy steels in which two or more of these are combined.
- Specific examples of the resin material forming the frame plate 31 include a liquid crystal polymer and a polyimide resin.
- the material for forming the frame plate 31 a coefficient of linear thermal expansion 3 X 10- 5 ZK following ones more preferably it is preferred instrument using an 1 X ⁇ - 7 ⁇ X IO K , particularly good Mashiku 1 X 10- 6 ⁇ 8 X 10- 6 ⁇ .
- the thickness of the frame plate 31 is not particularly limited as long as its shape is maintained and the anisotropic conductive sheet 35 can be supported. For example, it is preferably 25 to 600 ⁇ m, more preferably 40 to 400 ⁇ m.
- Each of the anisotropic conductive sheets 35 is formed of an elastic polymer material, and corresponds to the pattern of the electrode 7 to be inspected in one electrode region formed on the wafer 6, which is the circuit device to be inspected. It is composed of a plurality of conductive portions 36 formed in accordance with the pattern and extending in the thickness direction, and an insulating portion 37 for insulating each of these conductive portions 36 from each other.
- each of the conductive portions 36 in the anisotropic conductive sheet 35 contains conductive particles P exhibiting magnetism densely in a state aligned in the thickness direction.
- the insulating portion 37 contains no or almost no conductive particles P.
- the total thickness of the anisotropic conductive sheet 35 (the thickness of the conductive portion 36 in the illustrated example) is preferably 50 to 2000 ⁇ m, more preferably 70 to: LOOO ⁇ m, and particularly preferably. Is 80 to 500 ⁇ m.
- the thickness is 50 ⁇ m or more, sufficient strength is obtained for the anisotropic conductive sheet 35.
- the thickness is 2000 m or less, the conductive portion 36 having the required conductive characteristics has a small thickness. Is reliably obtained.
- the projecting height of the projecting portion 38 is preferably not less than 10% of the thickness of the projecting portion 38, and more preferably not less than 15%.
- the conductive portion 36 is sufficiently compressed with a small pressing force, so that good conductivity is reliably obtained.
- the protruding height of the protruding portion 38 is preferably 100% or less of the shortest width or diameter of the protruding portion 38, more preferably 70% or less.
- the protruding portion 38 By forming the protruding portion 38 having such a protruding height, the protruding portion 38 does not buckle when pressed, so that the intended conductivity is reliably obtained. [0227]
- a heat-resistant polymer material having a crosslinked structure is preferable.
- a liquid silicone rubber that can use various materials is preferable.
- the magnetic core particles for obtaining the conductive particles P preferably have a number average particle diameter of 3 to 40 ⁇ m.
- the number average particle diameter of the magnetic core particles refers to a value measured by a laser diffraction scattering method.
- the fine conductive portion 36 can be easily formed, and the obtained conductive portion 36 tends to have stable conductivity.
- the material constituting the magnetic core particles iron, nickel, cobalt, or a material obtained by coating these metals with copper or resin can be used.
- the saturation magnetic force is 0.1 W b / m. 2 or more can be preferably used, more preferably 0.3 Wb / m 2 or more, particularly preferably 0.5 WbZm 2 or more, specifically, iron, nickel, cobalt, or an alloy thereof. And the like.
- gold, silver, rhodium, platinum, chromium, and the like can be used, and among these, chemically stable and high conductivity are preferable. It is preferable to use gold in terms of having.
- the ratio of the highly conductive metal to the core particles is 15% by mass or more, preferably 25 to 35% by mass. It is said.
- the proportion of the highly conductive metal is less than 15% by mass, when the obtained anisotropically conductive connector 30 is repeatedly used in a high-temperature environment, the conductivity of the conductive particles P is significantly reduced. The required conductivity cannot be maintained.
- the number average particle diameter of the conductive particles P is preferably 3 to 40 ⁇ m, more preferably 6 to 25 ⁇ .
- the shape of the conductive particles P is not particularly limited, but is spherical, star-shaped, or spherical in that it can be easily dispersed in the polymer substance-forming material. It is preferred that these are aggregated secondary particles.
- the content ratio of the conductive particles P in the conductive portion 36 be 10 to 60%, preferably 15 to 50% in volume fraction.
- the obtained conductive portion 36 may be fragile or may not immediately have the necessary elasticity as the conductive portion 36.
- the anisotropic conductive connector 30 as described above can be manufactured, for example, by the method described in JP-A-2002-324600.
- the wafer 6 to be inspected is placed on the wafer mounting table 4 and then the probe card 1 is pressed downward by the pressure plate 3 to form a sheet.
- the force of each of the surface electrodes 16 in the electrode structure 15 of the probe 10 comes into contact with each of the electrodes 7 to be inspected of the wafer 6, and further, each of the electrodes 7 to be inspected of the wafer 6 is pressed by each of the surface electrodes 16. Is done.
- each of the conductive portions 36 in the anisotropic conductive sheet 35 of the anisotropic conductive connector 30 is connected to the test electrode 21 of the test circuit board 20 and the electrode structure 15 of the sheet probe 10. It is sandwiched by the back surface electrode portion 17 and compressed in the thickness direction.
- a conductive path is formed in the conductive portion 36 in the thickness direction, and as a result, electrical connection between the electrode 7 to be inspected on the wafer 6 and the inspection electrode 21 of the inspection circuit board 20 is achieved. . Thereafter, the wafer 6 is heated to a predetermined temperature via the wafer mounting table 4 and the pressure plate 3 by the force tl heater 5, and in this state, a required electrical inspection is performed on each of the plurality of integrated circuits on the wafer 6. Be executed.
- the probe card 1 includes the sheet probe 10 shown in FIG. Therefore, a stable electrical connection state can be reliably achieved even on the wafer 6 on which the electrodes 7 to be inspected are formed at a small pitch, and the electrode structure 15 of the sheet-like probe 10 falls off. Since the thickness of the insulating layer 18B is large, high durability can be obtained.
- the inspection apparatus can be applied to the wafer 6 on which the electrodes 7 to be inspected are formed at a small pitch.
- the stable electrical connection state can be reliably achieved, and since the probe card 1 has high durability, even when a large number of wafers 6 are inspected, the reliability is high over a long period of time. , Inspection can be performed.
- circuit device inspection device of the present invention is not limited to the above example, and various changes can be made as follows.
- the probe card 1 shown in FIG. 27 and FIG. 28 achieves electrical connection to the electrodes 7 to be inspected of all the integrated circuits formed on the wafer 6 at one time. It may be electrically connected to the electrodes 7 to be inspected of a plurality of integrated circuits selected from all the formed integrated circuits.
- the number of integrated circuits to be selected is appropriately selected in consideration of the size of the wafer 6, the number of integrated circuits formed on the wafer 6, the number of electrodes 7 to be inspected in each integrated circuit, and, for example, 16 , 32, 64, 128.
- the probe card 1 is electrically connected to the electrodes 7 to be inspected of a plurality of integrated circuits selected from all the integrated circuits formed on the wafer 6.
- the process of electrically connecting the probe card 1 to the electrodes 7 to be inspected of a plurality of integrated circuits selected from other integrated circuits and then performing the inspection is repeated. Accordingly, electrical inspection of all the integrated circuits formed on the wafer 6 can be performed.
- Circuit devices to be inspected by the inspection device of the present invention are not limited to wafers 6 on which a large number of integrated circuits are formed, semiconductor chips, package LSIs such as BGA and CSP, CMCs, etc. It can be configured as a device for inspecting a circuit formed in a semiconductor integrated circuit device or the like.
- the sheet-shaped probe 10 is fixed to the anisotropic conductive sheet 35 and the inspection circuit board 20 with the guide pins 50 and the like while being held by a cylindrical holding member such as ceramic. Talk about it.
- the second rear-surface-side metal layer 17A is indispensable and is omitted, and the metal is filled in the short-circuit portion forming recess 18K and the pattern hole 17H.
- the back surface electrode portion 17 integrally formed with the short-circuit portion 18 may be formed.
- the metal frame plate 25 and the sheet probe 10 manufactured separately may be laminated using an adhesive or the like and integrated.
- the sheet probe 10 of the present invention for example, the plurality of contact films 9 made of the insulating layer 18B having the electrode structure 15 as shown in FIG.
- the sheet-like probe 10 placed in each of the openings 26 and supported by the metal frame plate 25 may be used. Further, as shown in FIG. It may be arranged to cover a number of openings 26!
- the sheet-like probe 10 By configuring the sheet-like probe 10 with a plurality of independent contact films 9 as described above, for example, when the sheet-like probe 10 for inspecting a wafer having a diameter of 8 inches or more, the contact film 9 due to a temperature change This is preferable because the expansion and contraction is reduced and the displacement force S of the electrode structure 15 is reduced.
- Such a sheet probe 10 is formed by patterning and etching the insulating layer 18B with a resist in the state of FIG. 13 (b) or FIG. 26 (c) in the method of manufacturing the sheet probe 10 of the present invention.
- a photosensitive polyimide is spin-coated on the surface of the wafer 6 on which the integrated circuit L is formed to form a resin film B1, and pre-beta is performed.
- the non-exposure of the resin film B1 formed of the photosensitive polyimide is performed.
- an opening K1 was formed above the electrode to be inspected.
- a high-temperature beta treatment is performed to completely cure the resin film B1 formed of the semi-cured photosensitive polyimide, and the thickness of the 90-m ⁇ 90-m rectangular opening K1 formed on the electrode to be inspected is formed.
- An insulating film # 2 of about 10 ⁇ m made of polyimide was formed.
- each of the integrated circuits L formed on the wafer 6 has the electrode regions A to be inspected in the center thereof in two rows at an interval of 2500 m.
- the vertical dimension in Fig. 35 (a) is 90 m and the horizontal dimension in Fig. 35 (a) is 90 ⁇ m.
- 26 rectangular electrodes 7 to be inspected are arranged in a row in the horizontal direction at a pitch of 120 ⁇ m.
- the surface of the electrode 7 to be inspected is covered with an insulating film having a thickness of about 10 m.
- the total number of the electrodes 7 to be inspected in the entire wafer 6 is 26,116, and all the electrodes 7 to be inspected are electrically insulated from each other.
- this wafer 6 is referred to as “test wafer Wl”.
- two out of every 26 electrodes to be inspected in the integrated circuit L are counted from the outermost electrode 7 to be inspected. 483 integrated circuits L having the same configuration as that of the above-described test ueno W1 except that they were electrically connected to each other were formed on the wafer 6.
- test wafer W2 this wafer is referred to as “test wafer W2”.
- laminated body 10A in which a metal layer made of copper having a thickness of S4 m was laminated was prepared (see FIG. 14A).
- the laminate 10A has a first backside metal layer 19A made of copper with a thickness force m on one surface of an insulating sheet 11 made of a polyimide sheet having a thickness of 12.5 / zm, and a thickness force m on the other surface. It has a surface-side metal layer 16A made of copper.
- a protective film 40A is formed on the entire surface of the front-side metal layer 16A by a protective seal made of polyethylene terephthalate having a thickness of 25 ⁇ m with respect to the laminate 10A, and the first rear-side metal layer 19A is formed.
- a resist film 12A was formed on the entire back surface of the wafer, in which 26116 circular 1211 hole holes 12H having a diameter of 5 ⁇ m were formed according to the pattern corresponding to the pattern of the electrode 7 to be inspected formed on the test wafer W1 ( (See Fig. 14 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- a ferric chloride-based etchant was applied to the first backside metal layer 19A, using a ferric chloride-based etchant.
- a ferric chloride-based etchant was applied to the first backside metal layer 19A, using a ferric chloride-based etchant.
- the insulating sheet 11 was subjected to an etching treatment at 80 ° C for 10 minutes using an amine-based polyimide etching solution (“TPE-3000” manufactured by Toray Engineering Co., Ltd.). Then, 26116 through holes 11H communicating with the pattern holes 19H of the first backside metal layer 19A were formed in the insulating sheet 11 (see FIG. 15A).
- TPE-3000 an amine-based polyimide etching solution
- Each of the through holes 11H has a tapered shape that becomes smaller in diameter as it goes from the back surface to the front surface of the insulating sheet 11, and has an opening diameter of 45 ⁇ m on the back surface and an opening diameter on the front surface. was 25 ⁇ m (average value).
- the laminate 10A was immersed in a sodium hydroxide solution at 45 ° C. for 2 minutes to remove the resist film 12A from the laminate 10A.
- a resist film 13A is formed with a ⁇ m dry film resist (Hitachi Chemical: PHOTEC RY-3210) so as to cover the entire surface of the first backside metal layer 19A, and an insulating sheet 11 is formed on the resist film 13A.
- 26116 rectangular shapes with a diameter of 60 m communicating with the through holes 11H A no-turn hole 13H was formed (see FIG. 15 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the through hole 11H of the insulating sheet 11, the pattern hole 19H of the first back side metal layer 19A, and the pattern hole 13H of the resist film 13A are communicated with the back surface of the insulating sheet 11, respectively.
- Each surface electrode portion forming recess 10K was formed.
- the laminate 10A was immersed in a plating bath containing nickel sulfamate, and the laminate 10A was subjected to electrolytic plating using the surface-side metal layer 16A as an electrode to form each of the surface electrode portions.
- the holding portions 19 connected to each other by the surface electrode portion 16 and the first backside metal layer 19A were formed (see FIG. 15 (c)). .
- the resist film 13A was removed from the laminate 10A by immersing the laminate 10A on which the surface electrode portions 16 were formed in a sodium hydroxide solution at 45 ° C. for 2 minutes.
- Polyimide varnish (trade name "U-varnish” manufactured by Ube Industries, Ltd.) is applied to the first backside metal layer 19A and the surface of the holding portion 19 of the laminate 10A, and drying is repeated to obtain a thickness of about 10 mm. A polyimide layer 218 ° of 12 ⁇ m was formed.
- a metal sheet made of 42 alloy having a thickness of 10 ⁇ m and a diameter of 22 cm was integrally laminated on one side of the formed liquid polyimide layer 218A.
- the diameter was 20.4 cm and the thickness was 20.4 cm.
- a 25 ⁇ m polyimide film 218 ⁇ ⁇ ⁇ ⁇ was laminated so that the polyimide film side was in contact with the polyimide layer 218A.
- a protective tape made of polyethylene terephthalate having an inner diameter of 20.4 cm and an outer diameter of 22 cm is arranged on the surface of the peripheral portion of the metal sheet on the side in contact with the liquid polyimide layer 218A, and thermocompression bonding is performed in this state. Then, a laminate 10B shown in FIG. 16A was produced.
- an insulation layer 18B made of a 36 ⁇ m-thick polyimide sheet is laminated on one surface of the laminate 10A on which the surface electrode portion 16 is formed, and a 42 alloy is formed on the surface of the insulation layer 18B.
- This has a second backside metal layer 17A (see FIG. 16A).
- a diameter of 60 ⁇ m according to the pattern corresponding to the pattern of the electrode to be inspected formed on the test wafer W1 is formed on the entire surface of the second backside metal layer 17A with respect to the laminate 10B.
- a resist film 28A was formed in which the circular 261 16 pattern holes 28H were formed (see FIG. 16 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer composed of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the insulating layer 18B was etched by using an amine-based polyimide etchant ("TPE-3000", manufactured by Toray Engineering Co., Ltd.) at 80 ° C for 15 minutes.
- TPE-3000 amine-based polyimide etchant
- 26116 through holes 18H communicating with the pattern holes 17H of the second backside metal layer 17A were formed (see FIG. 17A).
- Each of the through holes 18H has a tapered shape in which the diameter becomes smaller in accordance with the directional force on the surface of the insulating layer 18B, the back surface electrode portion 17 is exposed on the bottom surface, and the opening diameter on the back surface side is reduced.
- the opening diameter on the 80 ⁇ m surface side was 35 ⁇ m.
- the laminate 10B in which the through holes 18H were formed was immersed in a sodium hydroxide solution at 45 ° C for 2 minutes to remove the resist film 28A from the laminate 10B.
- a resist film 29A is formed using a dry film resist having a thickness of 25 / zm so as to cover the entire surface of the second backside metal layer 17A, and the through-hole of the insulating layer 18B is formed in the resist film 29A.
- 26116 rectangular pattern holes 29H measuring 200 mx 80 m communicating with 18H were formed (see Fig. 17 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer composed of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the laminate 10B was immersed in a sodium hydroxide solution at 45 ° C for 2 minutes to remove the resist film 29A from the laminate 10B. Thereafter, an etching having a pattern hole 29K is performed by patterning with a dry film resist having a thickness of 25 ⁇ m so as to cover the portion to be the metal frame plate 25 in the second backside metal layer 17A and the backside electrode portion 17.
- a resist film 29B was formed (see FIG. 18A).
- the exposure treatment was performed by irradiating 80 mi of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the protective film 40A was also removed from the laminate 10B, and then the surface-side metal layer 16A and the second back-side metal layer 17A were treated with an ammonia-based etchant at 50 ° C for 30 seconds.
- an ammonia-based etchant at 50 ° C for 30 seconds.
- the entire surface-side metal layer 16A is removed, and at the same time, the portion of the second rear-surface-side metal layer 17A exposed by the pattern hole 29K is removed.
- a metal frame plate 25 having a plurality of openings 26 formed according to a pattern corresponding to the pattern of the electrode region in the integrated circuit formed on the test wafer W1 (FIG. 18). (See (b)).
- Each of the openings 26 provided in the metal frame plate 25 is 3600 m in the horizontal direction and 1000 ⁇ m in the vertical direction.
- a resist film 17E is formed with a dry film resist having a thickness of 25 ⁇ m so as to cover the back surface of the metal frame plate 25, the back surface of the insulating layer 18B, and the back electrode portion 17, and the resist film 17E is formed to a thickness of 25 ⁇ m.
- m protective film made of polyethylene terephthalate 40 B see Figure 18 (c)).
- the laminate 10B is subjected to an etching treatment with an amine-based polyimide etching solution (“TPE-3000” manufactured by Toray Engineering Co., Ltd.) at 80 ° C. for 10 minutes to form the insulating sheet 11B.
- TPE-3000 an amine-based polyimide etching solution manufactured by Toray Engineering Co., Ltd.
- a notched resist film 14A is formed using a dry film resist having a thickness of 25 ⁇ m so as to cover the surface electrode portion 16 and the portion to be the holding portion 19 in the first backside metal layer 19A. (See Fig. 19 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer composed of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- a ferric chloride-based etchant was applied to the first backside metal layer 19A using a ferric chloride-based etchant.
- C by performing etching treatment for 30 seconds, a circular holding part with a diameter of 60 m extending outward from the peripheral surface of the base end part of the surface electrode part 16 along the surface of the insulating layer 18B. 19 were formed, thereby forming the electrode structure 15 (see FIG. 19C).
- the laminate 10C was etched with an amine-based polyimide etchant ("TPE-3000" manufactured by Toray Engineering Co., Ltd.) at 40 ° C for 3 minutes.
- TPE-3000 amine-based polyimide etchant manufactured by Toray Engineering Co., Ltd.
- the surface portion of the insulating layer 18B was removed (see FIG. 13A).
- the resist film 14A was removed from the surface electrode portion 16 and the holding portion 19 by immersing in a sodium hydroxide aqueous solution at 45 ° C. for 2 minutes.
- a resist film was formed using a 25 m-thick dry film resist so as to cover the surface electrode portion 16 and the insulating layer 18B of the laminate 10C, and was patterned so as to cover a portion to be the contact film 9.
- a resist film 17F was formed (FIG. 13 (b)).
- Each of the resist films 17F is 4600 ⁇ m in the horizontal direction and 2000 ⁇ m in the vertical direction.
- an amine-based polyimide etchant (“T 3000-3000” manufactured by Toray Engineering Co., Ltd.) is used for etching at 80 ° C. for 10 minutes to allow each metal frame plate to pass through.
- a laminate 10C having the contact film 9 in which the electrode structure 15 was formed in the hole was obtained (FIG. 13 (c)).
- the protective film 40B is also removed from the laminate 10C force, and then the sodium hydroxide at 45 ° C.
- the resist film 17E and the resist film 17F were removed by immersion in an aqueous solution for 2 minutes.
- the protective tape made of polyethylene terephthalate was removed from the peripheral portion of the metal frame plate 25, and an adhesive (Cemedine Co., Ltd .: two-component acrylic adhesive Y) was attached to the surface of the peripheral portion of the metal frame plate 25. -620) was applied to form an adhesive layer.
- the holding member 40 made of ring-shaped silicon nitride having an outer diameter of 22 cm, an inner diameter of 20.5 cm, and a thickness of 2 mm is arranged, the holding member 40 and the metal frame plate 25 are pressed with a load of 50 kg.
- the sheet-like probe 10 according to the present invention was manufactured by joining the holding member 40 to the metal frame plate 25 by holding at 25 ° C. for 8 hours.
- H-K350 manufactured by Hitachi Chemical was used as the dry film resist, especially in the areas where power was not described.
- the thickness d of the insulating layer 18B is about 25 m
- the shape of the surface electrode portion 16 of the electrode structure 15 is a truncated cone
- the base end diameter R1 is 45 / ⁇ .
- the diameter R2 at the tip was 25 m
- the protrusion height h was 12.
- the shape of the short-circuit portion 18 was a truncated cone, the diameter R3 of one end on the front side was 35 m, the thickness d3 force was 6 m, and the diameter R4 of the other end on the back side was 80 m.
- the shape of the back electrode part 17 is a rectangular flat plate, the width (diameter R5) is 80 ⁇ m, the vertical width is 200 ⁇ m, the thickness d2 is 35 ⁇ m, and the shape of the holding part 19 is circular. It has a diameter of 60 ⁇ m and a thickness dl of 14 ⁇ m.
- sheet probe Ml sheet probe M4
- the laminated body 10A on which the surface electrode portions 16 were formed was immersed in a sodium hydroxide solution at 45 ° C. for 2 minutes to remove the resist film 13A from the laminated body 10A.
- the polyimide is applied to the surface of first backside metal layer 19A and holding portion 19 of laminate 10A.
- Dwanis Ube Industries, product name "U-varnish” was repeatedly applied and dried to form a polyimide layer 218A having a thickness of about 12 ⁇ m (see FIG. 20 (a)).
- a metal sheet made of 42 alloy having a thickness of 10 ⁇ m and a diameter of 22 cm was formed on one side, and a copper sheet having a diameter of 20.4 cm and a thickness of 4 m was formed on the other side.
- a polyimide film 218B having a diameter of 20.4 cm and a thickness of 25 ⁇ m on which the layers were stacked was laminated so that the copper layer side was in contact with the polyimide layer 218A.
- a protective tape made of polyethylene terephthalate having an inner diameter of 20.4 cm and an outer diameter of 22 cm is arranged on the surface of the peripheral portion of the metal sheet that is in contact with the liquid polyimide layer 218A, and subjected to thermocompression bonding in this state.
- a laminated body 10B shown in FIG. 21A was produced.
- the laminate 10B is an insulating layer made of a polyimide sheet having a metal layer 219 made of copper having a thickness of 40 ⁇ m and a thickness of 4 m inside on one surface of the laminate 10A on which the surface electrode portion 16 is formed.
- An insulating layer 18B is laminated, and a second backside metal layer 17A made of 42 alloy is provided on the surface of the insulating layer 18B (see FIG. 21 (a)).
- a circular 261 16 circular shape having a diameter of 60 ⁇ m is formed on the entire surface of the second back-side metal layer 17A with respect to the laminate 10B according to the pattern corresponding to the pattern of the electrode to be inspected formed on the test wafer W1.
- a resist film 28A having a pattern hole 28H was formed (see FIG. 21 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- a ferric chloride-based etching solution was applied to the second rear surface side metal layer 17A by using a ferric chloride-based etching solution.
- 26116 pattern holes 17H communicating with the pattern holes 28H of the resist film 28A were formed in the second backside metal layer 17A (FIG. 21 (c)). reference).
- the insulating layer 18B was etched using an amine-based polyimide etching solution ("TPE-3000", manufactured by Toray Engineering Co., Ltd.) at 80 ° C for 10 minutes. Openings communicating with the pattern holes 17H of the second backside metal layer 17A were formed in the layer 18B, and the metal layer 219 was exposed at the bottom thereof. [0293] Thereafter, the metal layer 219 exposed on the bottom surface of the opening of the insulating layer 18B was subjected to etching treatment at 50 ° C for 30 seconds using a ferric ferric etching solution.
- TPE-3000 amine-based polyimide etching solution
- the insulating layer 18B is etched at 80 ° C for 10 minutes using an amine-based polyimide etchant (“TPE-3000” manufactured by Toray Engineering Co., Ltd.). 26116 through holes 18H communicating with the pattern holes 17H of the second backside metal layer 17A were formed in 18B (see FIG. 22 (a)).
- TPE-3000 amine-based polyimide etchant
- Each of the through holes 18H has a tapered shape whose diameter becomes smaller in accordance with the directional force on the surface of the insulating layer 18B, the back surface electrode portion 17 is exposed at the bottom surface, and the opening diameter on the back surface side is reduced.
- the diameter was 80 m and the opening diameter on the front side was about 35 ⁇ m.
- the resist film 28A was removed from the laminate 10B by immersing the laminate 10B in which the through holes 18H were formed in a sodium hydroxide solution at 45 ° C. for 2 minutes (FIG. 23 (a ) See).
- the laminated body 10B is subjected to an electroless copper plating treatment, and further the electrolytic copper plating treatment is performed using the surface-side metal layer 16A as an electrode, so that the inner wall of the through hole 18H has a thickness of about 1 m.
- a thin metal layer 220 which also has a copper strength was formed.
- a resist film 29A is formed on the laminate 10B with a dry film resist having a thickness of 25 ⁇ m so as to cover the entire surface of the second backside metal layer 17A, and the insulating film 18B is formed on the resist film 29A.
- 26116 rectangular pattern holes 29H each having a size of 200 m ⁇ 80 m and communicating with the through holes 18H were formed.
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet rays with a high-pressure mercury lamp, and the development treatment was immersed in a developer composed of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the laminate 10B was immersed in a plating bath containing nickel sulfamate and laminated.
- the body 10B is subjected to electrolytic plating using the surface-side metal layer 16A as an electrode to fill each short-circuit portion forming recess 18K with metal, thereby connecting the short-circuit portion 18 and the short-circuit portion 18 connected to the surface electrode portion 16.
- the back surface electrode portions 17 connected to each other by the second back surface side metal layer 17A were formed (see FIGS. 22 (c) and 23 (c)).
- the laminate 10B was immersed in a sodium hydroxide solution at 45 ° C. for 2 minutes to remove the resist film 29A from the laminate 10B. Thereafter, an etching having a pattern hole 29K is performed by patterning with a dry film resist having a thickness of 25 ⁇ m so as to cover the portion to be the metal frame plate 25 in the second backside metal layer 17A and the backside electrode portion 17.
- a resist film 29B was formed (see FIG. 24A).
- the exposure treatment was performed by irradiating 80 mi of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- the protective film 40A was also removed from the laminate 10B, and then the surface-side metal layer 16A and the second back-side metal layer 17A were treated with an ammonia-based etchant at 50 ° C for 30 seconds.
- an ammonia-based etchant at 50 ° C for 30 seconds.
- the entire surface-side metal layer 16A is removed, and at the same time, the portion of the second rear-surface-side metal layer 17A exposed by the pattern hole 29K is removed.
- a metal frame plate 25 having a plurality of openings 26 formed according to a pattern corresponding to the pattern of the electrode region in the integrated circuit formed on the test wafer W1 is formed (FIG. 24). (See (b)).
- Each of the openings 26 provided in the metal frame plate 25 is 3600 m in the horizontal direction and 1000 ⁇ m in the vertical direction.
- the resist film 29B was removed from the back surface of the metal frame plate 25 and the back surface electrode portion 17 by immersing the laminate 10B in an aqueous solution of sodium hydroxide at 45 ° C. for 2 minutes. Thereafter, a resist film 17E is formed with a dry film resist having a thickness of 25 ⁇ m so as to cover the back surface of the metal frame plate 25, the back surface of the insulating layer 18B, and the back electrode portion 17, and the resist film 17E is formed to a thickness of 25 ⁇ m. m, covered with a protective film 40B made of polyethylene terephthalate (see FIG. 24 (c)).
- the laminate 10B is subjected to an etching treatment with an amine-based polyimide etching solution (“TPE-3000” manufactured by Toray Engineering Co., Ltd.) at 80 ° C. for 10 minutes to form the insulating sheet 11B.
- TPE-3000 an amine-based polyimide etching solution manufactured by Toray Engineering Co., Ltd.
- a notched resist film 14A is formed using a dry film resist having a thickness of 25 ⁇ m so as to cover the surface electrode portion 16 and the portion to be the holding portion 19 in the first backside metal layer 19A. (See Figure 25 (b)).
- the exposure treatment was performed by irradiating 80 mJ of ultraviolet light with a high-pressure mercury lamp, and the development treatment was immersed in a developer consisting of a 1% aqueous sodium hydroxide solution for 40 seconds. The operation was repeated twice.
- a ferric chloride-based etchant was applied to the first backside metal layer 19A using a ferric chloride-based etchant.
- C by performing etching treatment for 30 seconds, a circular holding part with a diameter of 60 m extending outward from the peripheral surface of the base end part of the surface electrode part 16 along the surface of the insulating layer 18B.
- the electrode structure 15 was formed (see FIG. 25 (c)).
- the laminated body 10C was etched using an amine-based polyimide etchant (“TPE-3000”, manufactured by Toray Engineering Co., Ltd.) at 80 ° C for 10 minutes to obtain insulation.
- TPE-3000 amine-based polyimide etchant
- the surface portion of the layer 18B was removed (see FIG. 26 (a)).
- the laminated body 10C from which the surface portion of the insulating layer 18B was removed was subjected to an etching treatment at 50 ° C for 1 minute using a ferric chloride-based etchant.
- the metal layer 219 and the thin metal layer 220 were removed.
- the resist film 14A was removed from the surface electrode portion 16 and the holding portion 19 by immersing in a sodium hydroxide aqueous solution at 45 ° C. for 2 minutes.
- a resist film was formed using a 25 m-thick dry film resist so as to cover the surface electrode portion 16 and the insulating layer 18B of the laminate 10C, and was patterned so as to cover a portion to be the contact film 9.
- a resist film 17F was formed (FIG. 26 (c)).
- Each of the resist films 17F is 4600 ⁇ m in the horizontal direction and 2000 ⁇ m in the vertical direction.
- an amine-based polyimide etchant (“T 3000-3000” manufactured by Toray Engineering Co., Ltd.) is used for etching at 80 ° C. for 10 minutes to allow each metal frame plate to pass through. Lamination with contact film 9 with electrode structure 15 formed in the hole A body IOC was obtained (Fig. 26 (d)).
- the resist film 17E and the resist film 17F were removed by removing the protective film 40B with the laminate 10C force and then immersing the laminate film in a sodium hydroxide aqueous solution at 45 ° C. for 2 minutes.
- the protective tape made of polyethylene terephthalate was removed from the peripheral portion of the metal frame plate 25, and an adhesive was applied to the surface of the peripheral portion of the metal frame plate 25 (Semedine Co., Ltd .: two-component acrylic adhesive Y -620) was applied to form an adhesive layer, and a ring-shaped holding member 40 made of silicon nitride having an outer diameter of 22 cm, an inner diameter of 20.5 cm, and a thickness of 2 mm was arranged. Thereafter, the holding member 40 and the metal frame plate 25 are pressurized with a load of 50 kg, and held at 25 ° C. for 8 hours, thereby joining the holding member 40 to the metal frame plate 25. Probe 10 was manufactured.
- H-K350 manufactured by Hitachi Chemical was used as the dry film resist, especially in the portions where the power was not described.
- the thickness d of the insulating layer 18B is about 25 m
- the shape of the surface electrode portion 16 of the electrode structure 15 is a truncated cone
- the base end diameter R1 is 45 / ⁇ .
- the diameter R2 at the tip was 25 m
- the protrusion height h was 12.
- the shape of the short-circuit portion 18 was a truncated cone, the diameter R3 of one end on the front side was about 35 m, the diameter R4 of the other end on the back side was 80 ⁇ m, and the thickness d3 force was 0 ⁇ m. Further, the shape of the back electrode 17 is a rectangular flat plate, the width (diameter R5) is 80 ⁇ m, the vertical width is 200 ⁇ m, the thickness d2 is 35 m, and the shape of the holding portion 19 is circular. It has a diameter of 60 ⁇ m and a thickness dl of 14 ⁇ m.
- the moving distance of the electrode structure 15, that is, the difference between the thickness d3 of the short-circuit portion 18 and the thickness d of the insulating layer 18B is about 15 ⁇ m.
- sheet probe Nl sheet probe N4
- a laminate 90C having a side metal layer 92C and comprising an insulating sheet 11 and an insulating layer 18B was prepared.
- the surface side metal layer 92A was made of 4 m thick copper
- the insulating layer 18B was made thick.
- the first backside metal layer 92C is made of copper having a thickness of 4 / zm
- the insulating sheet 91B is made of polyimide having a thickness of 37.5 / zm.
- the rear-side metal layer 92B is made of 42 alloy having a thickness of 10 m.
- a pattern hole having a diameter of 90 m is formed in the second backside metal layer side 92B on the laminate 90C, and the insulating layer 18B and the first An electrode structure is formed by forming a continuous through hole in the back metal layer 92C and the insulating sheet 11, exposing the front metal layer 92A on the bottom surface of the through hole, and simultaneously forming a short-circuit portion and a front electrode portion.
- a 90K recess was created (see Fig. 41 (b)).
- the laminate 90C is immersed in a plating bath containing nickel sulfamate, and the laminate 90C is subjected to an electrolytic plating process using the surface-side metal layer 92A as an electrode, and is placed in each short-circuit portion forming recess 90K. Metal was filled (see Fig. 41 (c)).
- the first backside metal layer is etched to form a holding portion
- the second backside metal layer is etched, and a part thereof is removed to form a back electrode portion and a support portion 92E.
- the insulating layer 18B was etched to divide the insulating layer into respective contact films (see FIG. 41 (e)).
- a cyanoacrylate-based adhesive (product name: Alonalpha, manufactured by Toagosei Co., Ltd.) is applied to the surface of a ring-shaped silicon nitride support member 2 having an outer diameter of 22 cm, an inner diameter of 20.5 cm, and a thickness of 2 mm.
- An article number: # 200) is dropped to form an adhesive layer, and a laminated body on which a contact film is formed is laminated and held at 25 ° C for 30 minutes.
- a cyanoacrylate-based adhesive product name: Alonalpha, manufactured by Toagosei Co., Ltd.
- the thickness d of the insulating layer was 37.5 / ⁇
- the shape of the surface electrode of the electrode structure was a truncated cone
- the base end diameter was 37 111
- the tip end diameter was 37 111.
- its protruding height is 12.5 / zm
- the holding part is 60 ⁇ m in width, 200 ⁇ m in height, 4 m in thickness
- the shape of the short-circuit part is a truncated cone.
- the back electrode part is a rectangular flat plate with a width of 90 ⁇ m, a vertical width of 200 ⁇ m, and a thickness of 20 ⁇ m.
- sheet probe 01 sheet probe 01
- sheet probe 04 sheet probe 04
- FC1000 commercially available nickel particles manufactured by Westaim
- magnetic core particles were prepared as follows.
- Nisshin Engineering air classifier Co., Ltd. "Turbo Classifier TC- 15N"
- the nickel particles 2kg, a specific gravity of 8.9, the air volume is 2. 5m 3 Zmin, rotor speed is 2250rpm
- the classification points Classification was performed under the conditions of 15 ⁇ m and a supply speed of nickel particles of 60 gZmin, 0.8 kg of nickel particles having a particle diameter of 15 / zm or less were collected, and 0.8 kg of the nickel particles was further crushed to a specific gravity of 0.8 kg.
- the air volume is 2. 5 m 3 Zmin, rotor speed 2930Rp m, classification point is 10 / ⁇ ⁇ , feed rate of the nickel particles classified under conditions of 30GZmin, were collected nickel particles 0. 5 kg .
- the obtained nickel particles had a number average particle size of 7.4 m, a variation coefficient of the particle size of 27%, a BET specific surface area of 0.46 X 10 3 m 2 Zkg, and a saturation magnetization of 0.6 Wb / It was m 2.
- the nickel particles are referred to as magnetic core particles Q.
- the magnetic core particles Q100g were charged into the processing tank of the powder coating apparatus, and 2 L of a 0.32N aqueous hydrochloric acid solution was added thereto and stirred to obtain a slurry containing the magnetic core particles Q.
- the magnetic core particles Q were subjected to an acid treatment by stirring the slurry at room temperature for 30 minutes, and then allowed to stand for 1 minute to precipitate the magnetic core particles Q, and the supernatant was removed.
- the magnetic core particles Q subjected to the acid treatment and the washing treatment had a gold content of 20 g.
- a slurry was prepared by mixing 2 L of the gold plating solution of ZL, raising the temperature in the treatment layer to 90 ° C., and stirring. In this state, the replacement of gold was performed on the magnetic core particles Q while stirring the slurry. After that, the slurry was allowed to stand while cooling, and the particles were settled, and the supernatant was removed to prepare conductive particles P.
- the obtained conductive particles had a number average particle size of 7.3 m, a BET specific surface area of 0.38 X 10 3 mVkg, (mass of gold forming the coating layer) Z (magnetic core particles [A Was 0.3) o
- conductive particles are referred to as "conductive particles (a)".
- a frame plate 31 having a diameter of 8 inches and having 966 openings 32 formed corresponding to each electrode region to be inspected in the test wafer W1 is formed. Produced.
- this frame plate 31 In the material of this frame plate 31 is covar (coefficient of linear thermal expansion 5 X 10- 6 ZK), the thickness of Ru te in 60 mu m.
- Each of the openings 32 has a horizontal dimension of 360 ⁇ m in FIG. 36 and FIG. 37 and a horizontal dimension of 900 ⁇ m in the vertical direction (FIG. 36 and FIG. 37). It is. As shown in FIG. 36, two openings 32 of the frame plate 31 are formed for one of the integrated circuits L formed on the test wafer, and are provided for the same integrated circuit L. The openings 32 of the frame plate 31 are arranged at a center-to-center distance (vertical direction in FIG. 37) at a pitch of 2000 m.
- a circular air inflow hole 33 is formed at a central position between the vertically adjacent openings 32, and has a diameter of 1000 ⁇ m.
- the addition-type liquid silicone rubber used was a two-part type liquid A and liquid B each having a viscosity of 250 Pa's, and the cured product thereof had a compression set of 5%, Durometer A hardness is 32 and tear strength is 25kNZm.
- the properties of the addition-type liquid silicone rubber and the cured product thereof are measured as follows.
- a turret-shaped test piece was prepared by punching from this sheet, and the bow I crack strength at 23 ° C and 2 ° C was measured in accordance with JIS K 6249.
- Durometer A hardness is 23 ⁇ 2 ° C according to JIS K 6249, by stacking five sheets prepared in the same manner as in (iii) above and using the obtained stack as a test piece. The value at the time was measured.
- each of the frame plates 31 is arranged so as to cover one opening 32, and is fixed to and supported by the opening edge of the frame plate 31.
- the anisotropic conductive connector 30 was manufactured.
- the curing treatment of the molding material layer was performed at 100 ° C for 1 hour while applying a magnetic field of 2T in the thickness direction by an electromagnet.
- Each of the anisotropic conductive sheets 35 has a width of 6000 ⁇ m, a length of 2000 ⁇ m, and 26 conductive sheets.
- the sections 36 are arranged in a row in the horizontal direction at a pitch of 120 m.Each of the conductive sections 36 has a horizontal dimension of 60 ⁇ m, a vertical dimension of 200 ⁇ m, a thickness of 150 ⁇ m, and a protrusion. Part 3
- the protrusion height of 8 is 25 ⁇ m, and the thickness of the insulating part 37 is 100 ⁇ m.
- a non-connection conductive portion 36 is arranged between the outermost conductive portion 36 in the lateral direction and the opening edge of the frame plate 31.
- Each of the non-connection conductive portions 36 has a horizontal dimension of 60 m, a vertical dimension of 200 m, and a thickness of 150 m.
- the volume fraction of all the conductive portions 36 was about 25%.
- anisotropically conductive connector Cl anisotropically conductive connector 1 C12
- Alumina ceramics (linear thermal expansion coefficient: 4.8 X 10-K) was used as the substrate material, and the test electrode was used according to the pattern corresponding to the pattern of the electrode under test in W1 for test.
- An inspection circuit board 20 on which 21 was formed was produced.
- the inspection circuit board 20 has a rectangular shape with an overall size of 30 cm ⁇ 30 cm, and the inspection electrode has a horizontal dimension of 60 ⁇ m and a vertical dimension of 200 ⁇ m.
- the obtained inspection circuit board is referred to as “inspection circuit board T1”.
- the insulation between adjacent electrode structures was evaluated as follows.
- the test wafer W1 was placed on a test table, and a sheet-like probe was placed on the surface of the test wafer W1 so that each of the surface electrode portions 16 of the test wafer W1
- the anisotropic conductive connector 30 is placed on the sheet-like probe so that each of the conductive portions 36 is positioned on the back electrode 17 of the sheet-like probe.
- the test circuit board T1 is positioned and positioned on the anisotropic conductive connector 30 such that each of the test electrodes 21 is positioned on the conductive portion 36 of the anisotropic conductive connector 30.
- the test circuit board T1 was further pressed downward with a load of 200 kg (the load applied to one electrode structure was about 8 g on average).
- a voltage is sequentially applied to each of the 26116 test electrodes 21 on the test circuit board T1, and the electrical resistance between the test electrode to which the voltage is applied and the other test electrodes is determined by the electrode structure of the sheet probe.
- the measurement was made as an electrical resistance (hereinafter, referred to as “insulation resistance”) between 15 points, and the ratio of the measurement points having an insulation resistance of 10 ⁇ or less at all the measurement points (hereinafter, referred to as “insulation failure ratio”) was obtained.
- connection stability of the electrode structure 15 to the electrode to be inspected was evaluated as follows.
- the test wafer W2 is placed on a test table equipped with an electric heater, and a sheet-like probe is placed on the surface of the test wafer W2 on the surface electrode portion 16 thereof. Each of them is positioned so as to be positioned on the electrode 7 to be inspected on the test wafer W2, and the anisotropic conductive connector 30 is placed on the sheet-shaped probe, and each of the conductive portions 36 is connected to the back of the sheet-shaped probe.
- the circuit board T1 for inspection is placed on the anisotropic conductive connector 30 so that each of the test electrodes 21 is placed on the conductive part 36 of the anisotropic conductive connector 30.
- the test circuit board T1 was further pressed downward with a load of 200 kg (the load applied to one electrode structure was about 8 g on average).
- the two test electrodes 21 electrically connected to each other via the sheet probe, the anisotropic conductive connector 30, and the test wafer W2.
- the electrical resistance between the test electrode 21 of the test circuit board T1 and the test electrode 21 of the test wafer W2 is determined by measuring the half of the measured electric resistance value. The resistance was recorded as resistance (hereinafter referred to as “conduction resistance”), and the ratio of measurement points where the conduction resistance at all measurement points was 1 ⁇ or more (hereinafter referred to as “connection failure rate”) was determined.
- operation (1) This operation is referred to as “operation (1)”.
- operation (3) the test table was cooled to room temperature (25 ° C.), and the pressurization on the test circuit board T1 was released. This operation is referred to as “operation (3)”.
- the conduction resistance is 1 ⁇ or more, it is practically difficult to use it for electrical inspection of an integrated circuit formed on a wafer.
- the sheet-shaped probe O according to the comparative example has the small thickness of the insulating layer 18B where the protruding height of the surface electrode portion is small, and therefore the electrode under test covered with the insulating film around the surface. It has been found that the electrical connection cannot be stably continued with respect to the wafer having.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/587,401 US7737707B2 (en) | 2004-04-27 | 2005-04-26 | Sheet-like probe, method of producing the probe, and application of the probe |
EP05737142.9A EP1744167B1 (en) | 2004-04-27 | 2005-04-26 | Sheet-like probe, method of producing the probe, and application of the probe |
KR1020067024768A KR101140505B1 (ko) | 2004-04-27 | 2005-04-26 | 시트상 프로브, 그의 제조 방법 및 그의 응용 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004132151 | 2004-04-27 | ||
JP2004-132151 | 2004-04-27 |
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PCT/JP2005/007937 WO2005103732A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007935 WO2005103730A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007936 WO2005103731A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007938 WO2005103733A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007939 WO2005103734A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
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PCT/JP2005/007937 WO2005103732A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007935 WO2005103730A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007936 WO2005103731A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
PCT/JP2005/007938 WO2005103733A1 (ja) | 2004-04-27 | 2005-04-26 | シート状プローブおよびその製造方法並びにその応用 |
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US (2) | US7671609B2 (ja) |
EP (2) | EP1744167B1 (ja) |
KR (3) | KR20070010068A (ja) |
CN (2) | CN100451659C (ja) |
TW (5) | TW200602645A (ja) |
WO (5) | WO2005103732A1 (ja) |
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- 2005-04-26 EP EP05737142.9A patent/EP1744167B1/en not_active Not-in-force
- 2005-04-26 CN CNB2005800134382A patent/CN100451659C/zh not_active Expired - Fee Related
- 2005-04-26 WO PCT/JP2005/007937 patent/WO2005103732A1/ja active Application Filing
- 2005-04-26 WO PCT/JP2005/007935 patent/WO2005103730A1/ja active Application Filing
- 2005-04-26 TW TW094113274A patent/TW200604533A/zh not_active IP Right Cessation
- 2005-04-26 TW TW094113278A patent/TW200538742A/zh unknown
- 2005-04-26 WO PCT/JP2005/007936 patent/WO2005103731A1/ja active Application Filing
- 2005-04-26 KR KR1020067024741A patent/KR20070010068A/ko not_active Application Discontinuation
- 2005-04-26 WO PCT/JP2005/007938 patent/WO2005103733A1/ja active Application Filing
- 2005-04-26 CN CNA2005800165925A patent/CN1957259A/zh active Pending
- 2005-04-26 TW TW094113271A patent/TW200540430A/zh unknown
- 2005-04-26 KR KR1020067024738A patent/KR20070010187A/ko not_active Application Discontinuation
- 2005-04-26 TW TW094113277A patent/TW200602642A/zh not_active IP Right Cessation
- 2005-04-26 WO PCT/JP2005/007939 patent/WO2005103734A1/ja active Application Filing
- 2005-04-26 KR KR1020067024768A patent/KR101140505B1/ko active IP Right Grant
- 2005-04-26 US US11/587,485 patent/US7671609B2/en active Active
- 2005-04-26 US US11/587,401 patent/US7737707B2/en active Active
- 2005-04-26 EP EP05737136A patent/EP1744166A1/en not_active Withdrawn
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TWI836352B (zh) * | 2021-03-19 | 2024-03-21 | 日商日本麥克隆尼股份有限公司 | 探針及探針卡 |
Also Published As
Publication number | Publication date |
---|---|
TW200602642A (en) | 2006-01-16 |
US7737707B2 (en) | 2010-06-15 |
TWI357499B (ja) | 2012-02-01 |
CN1957259A (zh) | 2007-05-02 |
TWI361894B (ja) | 2012-04-11 |
US7671609B2 (en) | 2010-03-02 |
WO2005103732A1 (ja) | 2005-11-03 |
EP1744167B1 (en) | 2013-10-02 |
EP1744166A1 (en) | 2007-01-17 |
TW200602645A (en) | 2006-01-16 |
KR101140505B1 (ko) | 2012-04-30 |
CN1973207A (zh) | 2007-05-30 |
EP1744167A1 (en) | 2007-01-17 |
WO2005103730A1 (ja) | 2005-11-03 |
US20070200574A1 (en) | 2007-08-30 |
TW200538742A (en) | 2005-12-01 |
KR20070010068A (ko) | 2007-01-19 |
KR20070006926A (ko) | 2007-01-11 |
TW200604533A (en) | 2006-02-01 |
EP1744167A4 (en) | 2012-02-29 |
WO2005103733A1 (ja) | 2005-11-03 |
WO2005103731A1 (ja) | 2005-11-03 |
KR20070010187A (ko) | 2007-01-22 |
CN100451659C (zh) | 2009-01-14 |
TW200540430A (en) | 2005-12-16 |
US20070205783A1 (en) | 2007-09-06 |
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