JP2012084294A - Sheet connector, socket for electronic component, and electronic component testing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet connector, a socket for an electronic component, and an electronic component testing device which are capable of reliably bringing a connection terminal (external terminal) of an electronic component such as an IC device into contact with a connector contact without causing an insulation sheet to lose its rubber elasticity, and which can be simply manufactured in a short period of time at a low cost in accordance with the type of electronic component such as the IC device.SOLUTION: A sheet connector 1 is used to electrically connect a first connection object to a second connection object. An insulation sheet 11 having rubber elasticity comprises on its one surface: a first connection terminal 12 which is electrically connected to the first connection object; a second connection terminal 13 which is electrically connected to the second connection object; and a wire 14 which electrically connects the first connection terminal 12 and the second connection terminal 13 to each other.

Description

  The present invention relates to a sheet-like connector, an electronic component socket, and an electronic component testing apparatus.

  Connectors that can electrically connect electronic components such as IC devices and circuit boards are widely used, and various types of connectors are known as such connectors. For example, in recent years, a sheet-like connector that can conduct electricity in the thickness direction of an elastically deformable insulating sheet has been proposed (see Patent Documents 1 and 2).

  For example, when testing an electronic component such as a manufactured IC device, it is built in the thickness direction of an insulating elastomer sheet as a connector used to connect an IC device to be tested and a test circuit board. A sheet-like connector having a plurality of fine metal wires exposed at both ends has been proposed (see Patent Document 3).

US Patent Application Publication No. 2007/0161265 JP 2008-140574 A JP 2006-140004 A

  In the conventional sheet-like connector described in Patent Documents 1 to 3, an electronic component such as an IC device placed on the connector can be obtained by configuring the connector from an elastically deformable insulating elastomer sheet. When the contact terminal of the electronic component is brought into contact with the contact (metal thin wire) of the connector, the elastomer sheet is elastically deformed so that they can be reliably brought into contact with each other. However, in order to make sure that the connection terminals of electronic parts such as IC devices and the contacts of connectors are brought into contact with each other by making fine pitches in recent IC devices and the like, it is necessary to incorporate fine metal wires in the elastomer sheet at high density When the fine metal wires are embedded in the elastomer sheet at high density, the elasticity of the elastomer sheet is lost, and there is a problem that the contact between the connection terminal of the electronic component such as an IC device and the contact of the connector becomes insufficient. .

  In particular, the sheet-like connector described in Patent Document 2 is manufactured by forming a laminated body in which an insulating layer and a layer made of a plurality of metal wires are laminated, and slicing the laminated body in the laminating direction. However, there is a problem that it takes time, labor and cost to manufacture such a sheet-like connector.

  In view of the problems as described above, the present invention reliably contacts the connection terminals (external terminals) of electronic components such as IC devices and the contacts of connectors without losing the rubber elasticity of the insulating sheet. An object of the present invention is to provide a sheet-like connector, an electronic component socket, and an electronic component testing apparatus that can be manufactured easily and in a short time and at low cost according to the type of electronic component such as an IC device. To do.

  In order to solve the above-mentioned problem, the present invention provides a sheet-like connector used for electrically connecting a first connection object and a second connection object, the first connection object. A first connection terminal electrically connected to the second connection object, a second connection terminal electrically connected to the second connection object, and the first and second connection terminals are electrically connected. Provided is a sheet-like connector in which wiring is provided on one surface of an insulating sheet having rubber elasticity (Invention 1).

  According to the said invention (invention 1), the rubber elasticity of an insulating sheet is provided by providing the 1st and 2nd connection terminal and the wiring which electrically connects them on one surface of an insulating sheet. Therefore, the electronic component (IC device or the like) as the first or second connection object and the first or second connection terminal of the sheet-like connector can be reliably brought into contact with each other.

  In the said invention (invention 1), the said 2nd connecting terminal is provided in the peripheral part of the said insulating sheet, and the said 1st connecting terminal is the center of the said insulating sheet rather than the said 2nd connecting terminal. It is preferably provided on the side (Invention 2). According to this invention (invention 2), the first connection terminal that can be electrically connected to the electronic component (IC device or the like) as the first connection object is the center of the insulating sheet constituting the sheet-like connector. Since the electronic component is provided on the insulating sheet, the connection terminal of the electronic component and the first connection terminal (contact) of the sheet-like connector can be brought into contact with each other simply by placing the electronic component on the insulating sheet. .

  In the said invention (invention 2), the said 1st connection terminal, the said 2nd connection terminal, and the said wiring use the conductive ink which contains a conductive material in the one surface of the said insulating sheet. It is preferably printed (Invention 3). According to this invention (invention 3), the first connection terminal, the second connection terminal, and the wiring can be provided by printing on the surface of the insulating sheet. For example, according to the type of electronic component such as an IC device. A sheet-like connector corresponding to the number or arrangement of the connection terminals of different electronic components can be manufactured easily and in a short time.

  In the above invention (Invention 3), as the conductive material, gold, silver, copper, nickel, tin, stainless steel, iron, palladium, a compound of these metals, an alloy composed of at least two of these metals, At least one selected from the group consisting of a carbon-based material, a chemically modified product of the carbon-based material, an ionic liquid, a conductive polymer, a conductive organic compound, and a magnetic material can be used (Invention 4).

  In the said invention (invention 4), carbon black, a graphite, a carbon fiber, a carbon nanotube, or carbon nanofiber can be used as said carbonaceous material (invention 5).

  In the said invention (invention 5), it is preferable that the average particle diameter of the said electroconductive material is 1-500 nm (invention 6). According to this invention (invention 6), when the average particle diameter of the conductive material is within the above range, the first connection terminal, the second connection terminal and the wiring are printed on the surface of the insulating sheet with high density. Therefore, even with an electronic component such as an IC device having a fine pitch, the connection terminal of the electronic component and the first connection terminal (or the second connection terminal) can be reliably brought into contact with each other. it can.

  In the said invention (invention 6), the said insulating sheet can use the sheet | seat which consists of silicone rubber, fluororubber, ethylene-propylene-diene rubber (EPDM), butyl rubber, a urethane resin, or an acrylic resin (invention 7). .

  Further, the present invention is an electronic component socket in which an electronic component is detachably held, and covers the sheet-like connector according to the inventions (Inventions 1 to 7) and the peripheral portion of the sheet-like connector. And the second connection terminal is provided at a peripheral edge of the sheet-like connector covered by the socket member, and the first connection terminal is the second connection terminal. Further, the present invention provides a socket for electronic parts, characterized in that the socket is provided closer to the center of the insulating sheet (Invention 8).

  In the above invention (invention 8), the socket member has a frame shape having an opening into which the electronic component can be inserted, and the first connection terminal faces the opening. Is preferably provided on one surface (Invention 9). According to this invention (invention 9), since the socket member has an opening into which the electronic component can be inserted and the first connection terminal faces the opening, the electronic component is placed in the opening. The positioning of the electronic component can be ensured only by inserting the connector, and as a result, the connection terminal of the electronic component and the first connection terminal can be reliably brought into contact with each other.

  Further, according to the present invention, there is provided an electronic component socket according to the above inventions (Inventions 8 and 9) on which the electronic device under test is detachably held, and the sheet-like connector mounted thereon, the first member being interposed via the socket member. A circuit board electrically connected to the two connection terminals, and an electronic component testing apparatus main body electrically connected to the second connection terminal via the circuit board and the socket member. An electronic component testing apparatus is provided (Invention 10).

  According to the present invention, the connection terminal (external terminal) of an electronic component such as an IC device can be reliably brought into contact with the contact of the connector without losing the rubber elasticity of the insulating sheet, and the IC device or the like. It is possible to provide a sheet-like connector, an electronic component socket, and an electronic component testing apparatus that can be easily manufactured in a short time and at a low cost according to the type of the electronic component.

It is a perspective view which shows the sheet-like connector which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the socket for electronic components which has a sheet-like connector which concerns on one Embodiment of this invention. It is a fragmentary sectional view which shows the state in which the electronic component was accommodated in the socket for electronic components in one Embodiment of this invention. It is a schematic perspective view which shows the electronic component testing apparatus in one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Sheet connector]
FIG. 1 is a perspective view showing a sheet-like connector according to the present embodiment.
As shown in FIG. 1, the sheet-like connector 1 according to this embodiment includes a first connection terminal that is electrically connected to a first connection object on one surface of an insulating sheet 11 having rubber elasticity. 12, a second connection terminal 13 that is electrically connected to the second connection object, and a wiring 14 that electrically connects the first connection terminal 12 and the second connection terminal 13 are provided. Become. In the present embodiment, an IC device is described as an example of the first connection object, and a circuit board is illustrated as the second connection object. However, the present invention is not limited to this example. Examples of the combination of the first and second connection objects include semiconductor parts such as LSI and CPU and circuit boards; electric appliances and power supplies; electric equipment and chargers that are used after charging.

  As the insulating sheet 11 constituting the sheet-like connector 1 according to the present embodiment, any sheet having rubber elasticity may be used. For example, silicone rubber, fluorine rubber, ethylene-propylene-diene rubber (EPDM), butyl rubber, urethane resin A sheet made of acrylic resin or the like can be used, and a sheet made of silicone rubber can be particularly preferably used. By using a sheet made of silicone rubber as the insulating sheet 11, the sheet-like connector 1 excellent in flexibility, non-contamination, heat resistance, and low temperature resistance can be obtained.

The volume resistivity of the insulating sheet 11 is preferably 10 ¹² Ω · cm or more, and particularly preferably 10 ¹⁶ Ω · cm or more. If the volume resistivity is less than 10 ¹² Ω · cm, dielectric breakdown may occur.

  The thickness of the insulating sheet 11 is preferably 0.2 to 3 mm, and particularly preferably 0.5 to 2 mm. If the thickness of the insulating sheet 11 is less than 0.2 mm, desired rubber elasticity cannot be obtained, and the contact between the connection terminal (external terminal) of the IC device and the first connection terminal 12 may be insufficient. Yes, if it exceeds 3 mm, it may be difficult to dispose the electronic device in a thin shape.

  As shown in FIG. 1, the sheet-like connector 1 according to the present embodiment has a plurality (16 in this embodiment) of second connection terminals that are electrically connected to a circuit board as a second connection object. 13 is provided on the periphery of the insulating sheet 11, and a plurality (16 in this embodiment) of first connection terminals 12 that are electrically connected to connection terminals (external terminals) of the IC device are the second. It is provided in the center side in the insulating sheet 11 rather than the connection terminal 13. In the present embodiment, 16 first connection terminals 12 and 16 second connection terminals 13 are provided to accommodate 16-pin DIP (Dual in-line Package) type IC devices. However, the present invention is not limited to this, and the number and arrangement of the first connection terminals 12 and the second connection terminals 13 can be set as appropriate according to the type of IC device (number of pins, pin arrangement, etc.). .

  The sheet-like connector 1 according to the present embodiment uses the conductive ink containing a conductive material on one surface of the insulating sheet 11 to electrically connect the first connection terminal 12, the second connection terminal 13, and them. The wiring 14 to be connected can be manufactured by printing and baking. Since the first connection terminal 12, the second connection terminal 13, and the wiring 14 that electrically connects them can be formed in this way, the number of pins of the IC device and Even if the pin arrangement is changed, the sheet-like connector 1 can be manufactured easily and in a short time according to the type of the IC device after the change.

  Examples of the conductive material contained in the conductive ink used for printing the first connection terminal 12, the second connection terminal 13, and the wiring 14 that electrically connects them include gold, silver, copper, nickel, Tin, stainless steel, iron, palladium, compounds of these metals (for example, metal oxides) and alloys comprising at least two of these metals (for example, iron nickel alloys, iron palladium alloys, silver tin alloys, etc.) A carbon-based material (for example, carbon black, graphite, carbon fiber, carbon nanotube, carbon nanofiber, etc.) and a chemical modification of the carbon-based material (for example, carboxylation and esterification of the end of the carbon-based material such as carbon nanotube) Polyol, epoxidized, halogenated, etc.); ionic liquid, conductive polymer, conductive organic compound, line Magnetic material (e.g., ferrite) may be used at least one selected from the group consisting of, but not limited thereto.

  The average particle size (number average particle size) of the conductive material is preferably 1 to 500 nm, and particularly preferably 2 to 100 nm. If the average particle size of the conductive material is less than 1 nm, the conductive materials may easily aggregate together. If the average particle size exceeds 500 nm, the number of pins of the IC device increases with the fine pitch of the IC device. In this case, it may be difficult to form the first connection terminal 12, the second connection terminal 13, and the wiring 14 that electrically connects them on one surface of the insulating sheet 11 with a narrow pitch. is there.

  The conductive ink may contain a binder component, a solvent, and the like. Examples of the binder component that can be included in the conductive ink include acrylic resin, epoxy resin, polyester resin, polyimide resin, and the like. Examples of the solvent include higher alcohols such as hexanol and cyclohexanol; butyl cellosolve, ethyl cellosolve acetate. And alkyl ethers.

  Examples of a method for printing the first connection terminal 12, the second connection terminal 13, and the wiring 14 that electrically connects them on one surface of the insulating sheet 11 include, for example, offset printing, gravure printing, and screen printing. Ink-jet printing, etc. can be mentioned, but as long as the first connection terminal 12, the second connection terminal 13 and the wiring 14 for electrically connecting them can be printed on the insulating sheet 11, a known printing method is adopted. can do.

  After the first connection terminal 12, the second connection terminal 13, and the wiring 14 that electrically connects them are printed on the insulating sheet 11, the insulating sheet 11 is baked. As a result, the conductive material contained in the conductive ink is melted, and the conductive first connecting terminal 12, the second connecting terminal 13, and the wiring 14 that electrically connects them are formed on the insulating sheet 11. It will be fixed to.

  The firing temperature of the insulating sheet 11 is not higher than the melting point of the material constituting the insulating sheet and can be set as appropriate above the melting point of the conductive material included in the conductive ink. When a sheet made of silicone rubber is used and silver is used as the conductive material, it may be fired at 100 to 300 ° C.

  Since the sheet-like connector 1 according to the present embodiment obtained as described above does not include a conductive member such as a thin metal wire in the thickness direction of the insulating sheet 11, the rubber elasticity of the insulating sheet 11 is lost. It will never be. Therefore, by placing an IC device or the like on the sheet-like connector 1, the insulating sheet 11 is elastically deformed by its own weight or slight pressure such as the IC device, and connection terminals (external terminals) of the electronic component such as the IC device ) And the first connection terminal 12 of the sheet-like connector 1 can be reliably brought into contact with each other. In particular, the rubber elasticity of the insulating sheet 11 is not lost even if the number of the first connection terminals 12 and the second connection terminals 13 is increased in order to cope with the fine pitch of the IC device. Can play. Therefore, as described later, for example, it can be suitably used as an electronic component socket.

[Socket for electronic parts]
FIG. 2 is an exploded perspective view showing an electronic component socket having the sheet-like connector 1 according to the present embodiment. FIG. 3 shows an electronic component (IC device) accommodated in the electronic component socket according to the present embodiment. It is a fragmentary sectional view showing a state.

  As shown in FIG. 2, the electronic component socket 2 in this embodiment includes a sheet-like connector 1 and a socket member 21 that is arranged so as to cover the peripheral edge of the sheet-like connector 1.

  The socket member 21 has a frame shape in which an opening 22 into which an IC device can be inserted is formed. The socket member 21 is arranged so that the first connection terminal 12 of the sheet-like connector 1 faces the opening 22. In FIG. 21, an opening 22 is located.

  The size of the opening 22 may be appropriately set according to the size of the IC device accommodated in the electronic component socket 2, but a slight amount between the accommodated IC device and the peripheral portion of the opening 22. The size is such that there is play, and the connection terminal (external terminal) of the IC device and the first connection terminal 12 of the sheet-like connector 1 can be reliably electrically connected. With such a size, the IC device can be easily positioned in the opening 22, the IC device can be easily fitted into the opening 22, and can be removed from the opening 22. It can be done easily. In the present embodiment, the shape of the opening 22 is substantially rectangular in plan view, but is not limited thereto, and may be appropriately changed according to the shape of the IC device accommodated in the opening 22. it can.

  As shown in FIG. 3, the socket member 21 includes a covering portion 23 that covers the peripheral edge portion of the sheet-like connector 1 and a peripheral wall portion 24 that is bent downward continuously from the covering portion 23. A connection terminal 25 that is electrically connected to the second connection terminal 13 of the sheet-like connector 1 is provided on the surface of the cover portion 23 of the socket member 21 that faces the surface of the sheet-like connector 1. Wiring (not shown) for electrically connecting 25 and, for example, a circuit board (not shown) is provided on the covering portion 23 and the peripheral wall portion 24. As such a socket member 21, for example, a flexible printed circuit board (FPC) formed by forming a metal thin film on a film of polyethylene terephthalate, polyimide, or the like can be used.

  The peripheral wall portion 24 of the socket member 21 is provided continuously from the covering portion 23 and bent downward so as to be in contact with all of the outer peripheral portion of the insulating sheet 11. Thereby, the sheet-like connector 1 is sandwiched between a circuit board (not shown) arranged on the lower side of the sheet-like connector 1 in FIG. 3 and the covering portion 23 of the socket member 21, and the peripheral wall portion 24. It will be fixed by. For this reason, the sheet-like connector 1 can be fixed on a circuit board by mounting the sheet-like connector 1 on a circuit board, and attaching the socket member 21 to a circuit board via an FPC connector etc., for example.

  Note that the electronic component socket 2 in the present embodiment may include a fixing member (not shown) that presses and fixes the IC device fitted in the opening 22 to the sheet-like connector 1 side. . If it has such a fixing member, since the insulating sheet 11 of the sheet-like connector 1 has rubber elasticity, the sheet-like connector 1 (insulating sheet 11) is elastically deformed by pressing, and the IC device. The connection terminal (external terminal) and the first connection terminal 12 of the sheet-like connector 1 can be reliably electrically connected, and an IC device inserted into the opening 22 of the electronic component socket 2 can be obtained. It can be held securely.

  In the electronic component socket 2 as described above, the opening 22 is provided at a position where the first connection terminal 12 of the sheet-like connector 1 faces the opening 22 of the socket member 21. Therefore, the electrical connection between the connection terminal 31 of the accommodated IC device 30 and the first connection terminal 12 of the sheet-like connector 1 can be reliably brought into electrical contact only by housing the IC device 30 in the opening 22. it can.

  According to the electronic component socket 2 in the present embodiment, the first connection terminal 12, the second connection terminal 13, and the wiring 14 are printed on the insulating sheet 11, and therefore the electronic component socket 2 only by printing the first connection terminal 12, the second connection terminal 13 and the wiring 14 on the insulating sheet 11 in accordance with the type of IC device (pin arrangement, number of pins, etc.) mounted on the IC. The electronic component socket 2 corresponding to the device can be easily manufactured. Moreover, the sheet-like connector 1 (insulation) is obtained by printing the first connection terminal 12, the second connection terminal 13, and the wiring 14 on the surface of the insulating sheet 11. Since the rubber elasticity of the conductive sheet 11) is not lost, the sheet-like connector 1 on which the IC device is mounted can be elastically deformed even if the number of pins of the IC device increases due to fine pitch or the like. The connection terminal (external terminal) of the IC device and the first connection terminal 12 can be reliably brought into contact with each other.

  Therefore, the electronic component socket 2 having such a configuration can be used by being mounted on an electronic device such as a mobile phone, a PDA, a digital camera, and a personal computer. It can be suitably used as a socket.

[Electronic component testing equipment]
FIG. 4 is a schematic perspective view showing the electronic component testing apparatus in the present embodiment. The electronic component testing apparatus according to the present embodiment will be described by taking a burn-in apparatus that tests an electronic component under a temperature environment higher than normal temperature as an example. However, the electronic component testing apparatus of the present invention is limited to such an apparatus. It is not something.

  As shown in FIG. 4, the electronic component testing apparatus 4 in this embodiment includes a test head 42 having a plurality of sockets 2 for electronic components, a socket board 41 on which the plurality of sockets 2 for electronic components are mounted, and a test. A tester 43 that sends a test signal to the head 42 to test the IC device under test and a pressing member (not shown) that presses the IC device under test accommodated in the opening 22 of the electronic component socket 2 are provided. . The electronic component testing apparatus 4 in the present embodiment is not limited to the above-described configuration. For example, a thermostat (not shown) that applies a temperature higher than normal temperature to the IC device under test, and a thermostat And a heat removal tank (not shown) that cools the IC device that has been transported to the test head and has been tested to room temperature, and can further handle the IC device under test. It may be provided with a handling device that can.

  In the electronic component testing apparatus 4 having such a configuration, an IC device under test to which a temperature higher than normal temperature is applied in a thermostat (not shown) is provided for the electronic component provided on the test head 42. The IC device to be tested is accommodated in the opening 22 by being transferred onto the opening 22 of the socket 2.

  The IC device under test accommodated in the opening 22 is pressed toward the sheet-like connector 1 by a pressing member (not shown), and the IC device under test is tested by a test signal sent from the tester 43. At this time, since the sheet-like connector 1 is composed of an insulating sheet 11 having rubber elasticity, and is elastically deformed by pressing, it faces the connection terminal (external terminal) of the pressed IC device under test and the opening 22. The first connection terminal 12 of the sheet-like connector 1 can be reliably brought into contact.

  The size of the opening 22 is such that the connection terminal (external terminal) of the IC device under test accommodated in the opening 22 and the first connection terminal 12 of the sheet-like connector 1 can be reliably electrically connected. In addition, there is a size having play between the IC device under test and the peripheral portion of the opening 22. Therefore, the IC device under test can be reliably positioned in the opening 22. Further, the IC device under test can be easily fitted into the opening 22, and the tested IC device that has been tested can be easily taken out from the opening 22.

  The tested IC device that has been tested is transported to a heat removal tank (not shown) and returned to room temperature in the heat removal tank. Note that the electronic component test apparatus 4 in the present embodiment may have a configuration for classifying the tested IC devices according to the test result by the tester 43.

  According to the electronic component testing apparatus 4 as described above, since the sheet-like connector 1 is composed of the insulating sheet 11 having rubber elasticity, the sheet-like connector 1 is obtained by pressing the IC device under test by the pressing member. The (insulating sheet 11) is elastically deformed, and the connection terminal (external terminal) of the IC device under test and the first connection terminal 12 can be reliably brought into contact with each other.

  Further, in the electronic component test apparatus 4 according to the present embodiment, it is necessary to replace the electronic component socket 2 that accommodates the IC device under test with the change in the type of the IC device under test. Since the sheet-like connector 1 is formed by printing the first connection terminal 12, the second connection terminal 13, and the wiring 14 on the surface of the insulating sheet 11, the electronic component socket 2 can be easily manufactured. In addition, the electronic component socket 2 associated with the change in the type of IC device under test can be replaced in a short period of time.

  The embodiment described above is described for facilitating understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Sheet-shaped connector 11 ... Insulating sheet 12 ... 1st connection terminal 13 ... 2nd connection terminal 14 ... Wiring 2 ... Socket for electronic components 21 ... Socket member 22 ... Opening part 23 ... Covering part 24 ... Perimeter wall part 25 ... Connection terminal 30 ... IC device (electronic component)
31 ... Connection terminal 4 ... Electronic component test equipment 41 ... Socket board (circuit board)
42 ... Test head 43 ... Tester

Claims (10)

A sheet-like connector used for electrically connecting a first connection object and a second connection object,
A first connection terminal electrically connected to the first connection object; a second connection terminal electrically connected to the second connection object; and the first and second connections. A sheet-like connector, wherein wiring for electrically connecting terminals is provided on one surface of an insulating sheet having rubber elasticity. The second connection terminal is provided at a peripheral edge of the insulating sheet;
2. The sheet-like connector according to claim 1, wherein the first connection terminal is provided closer to the center of the insulating sheet than the second connection terminal.   The first connection terminal, the second connection terminal, and the wiring are printed using a conductive ink including a conductive material on one surface of the insulating sheet. The sheet-like connector according to claim 2.   The conductive material is gold, silver, copper, nickel, tin, stainless steel, iron, palladium, a compound of these metals, an alloy composed of at least two of these metals, a carbon-based material, and a carbon-based material. The sheet-like connector according to claim 3, wherein the sheet-like connector is at least one selected from the group consisting of a chemically modified product, an ionic liquid, a conductive polymer, a conductive organic compound, and a magnetic material.   The sheet-like connector according to claim 4, wherein the carbon-based material is carbon black, graphite, carbon fiber, carbon nanotube, or carbon nanofiber.   The sheet-like connector according to claim 5, wherein the conductive material has an average particle diameter of 1 to 500 nm.   The sheet-like connector according to claim 6, wherein the insulating sheet is a sheet made of silicone rubber, fluorine rubber, ethylene-propylene-diene rubber (EPDM), butyl rubber, urethane resin, or acrylic resin. An electronic component socket in which an electronic component is detachably held,
The sheet-like connector according to any one of claims 1 to 7,
A socket member arranged so as to cover the peripheral edge of the sheet-like connector,
The second connection terminal is provided at a peripheral edge of the sheet-like connector covered by the socket member,
The first connection terminal is provided closer to the center of the insulating sheet than the second connection terminal. The socket member has a frame shape having an opening into which the electronic component can be fitted,
The electronic component socket according to claim 8, wherein the first connection terminal is provided on a surface of the insulating sheet facing the opening. The electronic component socket according to claim 8 or 9, wherein the electronic component under test is detachably held;
A circuit board on which the sheet-like connector is mounted and electrically connected to the second connection terminal via the socket member;
An electronic component test apparatus comprising: an electronic component test apparatus main body electrically connected to the second connection terminal via the circuit board and the socket member.

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