JP2854856B2 - Conduction auxiliary material and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive auxiliary material used for connection between conductors used in various electronic devices, a method of manufacturing the conductive auxiliary material, a connector using the conductive auxiliary material, and an integrated circuit socket.

[0002]

2. Description of the Related Art A conduction auxiliary material functions to assist electrical conduction between connection elements by being interposed between connection elements of a connector.

In a connector for electrically connecting a connection between conductors, a connection element has a flat conductive surface, and one of the connection elements performs electrical conduction by overlapping and contacting each other. There is a plug, the other of which is a socket, for example, one in which the plug is mounted on the socket and the outer peripheral surface of the plug is brought into contact with the inner peripheral surface of the socket hole to conduct electrical conduction. In such a connector, it is necessary for the connecting elements to be in close contact with each other in order to ensure sufficient electrical continuity. However, if the connection elements are distorted or dust is present between the connection elements, the contact area between the connection elements is reduced, so that close contact between the connection elements is hindered and the electrical conduction is incomplete. .

[0004] As means for solving the above problem, Japanese Utility Model Publication No. 1-222230 discloses that a plurality of blades obliquely oriented with respect to the plug outer peripheral surface are provided at regular intervals between two annular frames. There is disclosed a conduction auxiliary material provided to be used by being provided around either the inner peripheral surface of the socket hole or the outer peripheral surface of the plug. Further, Japanese Utility Model Publication No. 51-8710 discloses that an annular metal band is provided with a plurality of cuts so that a tongue piece having both ends connected to the metal band is provided, and the inner peripheral surface of the socket hole or the outer peripheral surface of the plug is provided. A conductive auxiliary material is disclosed in which a tongue piece is obliquely oriented with respect to an outer peripheral surface of a plug by being provided around the plug.

On the other hand, integrated circuits such as ICs and LSIs are mounted on a substrate or the like via an integrated circuit socket. Therefore, the contact substrate of the integrated circuit socket, that is, the portion that mediates conduction between the integrated circuit and the substrate, is required to have sufficient electrical contact with both the terminals of the integrated circuit and the terminals formed on the substrate. Required to ensure continuity.
In addition, in the case of a contact substrate for an integrated circuit socket used for mounting, the thickness is thin due to recent demand for miniaturization of information processing equipment and the like, and the contact substrate may have high speed with an increase in the amount of information to be processed. Required.

A conventional contact substrate for an integrated circuit uses a terminal contact member 35 formed with a curved portion 27 to provide elasticity in the vertical direction and a terminal support portion 29 (FIG. 4 ( a)), a metal wire 31 buried at a high density in a silicone rubber 30 (FIG. 4B), and conductive particles 33 between both surfaces of a rubber sheet 32.
Are arranged in a row, and are compressed by the spherical terminals 24 of the integrated circuit so that the conductive particles 33 at that portion come into contact with each other (FIG. 4C).
The terminal contact member 35 supported at 4 is embedded in the sheet with the other end protruding from the sheet (FIG. 4D).
There is a terminal contact member 35 formed by randomly winding a wire made of a conductive material and embedded in a sheet with both ends protruding from the sheet (FIG. 4E).

[0007]

However, the conductive auxiliary material is used for a socket-plug type connector. In particular, the conductive auxiliary material disclosed in Japanese Utility Model Publication No. 51-8710 is repeatedly used. The use thereof has a problem in durability, such as breakage or wear of the tongue piece or blade portion. Further, there is a problem that it is necessary to prepare conductive auxiliary materials having different standards according to the size of the connector.

[0010] Furthermore, as for the contact substrate for an integrated circuit, the one shown in FIG. 4A has a problem that it cannot be used as a socket for an integrated circuit for mounting because of its low speed.

[0009] Although the one shown in FIG. 4B is excellent in high speed, it is difficult to adapt to LGA.

FIG. 4C shows that the conductive particles 33 arranged in a row do not come into contact with each other successfully or the conductive particles 33 belonging to another row come into contact with each other. There was a problem of instability.

In addition, the structure shown in FIG. 4D has a problem that it has to be thicker than its structure, so that it is inferior in high speed and is not suitable for use for mounting.

[0014] Furthermore, the one shown in FIG. 4E has a problem that the electrical characteristics become unstable due to the variety of conduction paths.

The present invention has been made in view of such a situation, and an object of the present invention is to apply to both a flat conductive surface and a curved conductive surface when used for a connector, and to provide an integrated circuit. When used for sockets, it can easily respond to differences in connector and socket sizes,
In addition, it is excellent in high-speed operation and can be used as a socket for an integrated circuit for mounting, and furthermore, a conductive auxiliary material which is easy to assemble, a manufacturing method thereof, and a connector and an integrated circuit socket using the conductive auxiliary material. The purpose is to provide.

[0014]

That is, according to the present invention, there is provided a conduction auxiliary material having a conduction member in a part or all of a large number of through holes provided in a sheet made of an insulating elastic material. The conductive member is a section made of a conductive material, and the section is fixed to the sheet at one end thereof and has two or more blade portions formed by one or more cuts. The above 2 formed in
A part of the above-mentioned wing part is replaced with one of the two openings of the through hole.
By bending the sheet toward an opening existing on the same surface of the sheet, an end of the blade portion is protruded from the opening to provide a conduction auxiliary material.

[0015] The conductive auxiliary material may be formed by bending at least one of the two or more blades toward an opening existing on the other surface of the sheet.

In the above-described conduction assisting member, it is preferable that each section has two blades formed by a single cut provided at the other end.

Further, the conduction assisting member is formed by laminating two sheets made of an insulating elastic material, and by holding one end of the section with the two sheets, the section is formed into a sheet. It is preferably fixed to the surface.

In the above-described conduction auxiliary material, the shape of the opening of the through hole is circular, and the diameter of the opening is 0.2 to 1.
It is preferably 2 mm. Further, the pitch of the through holes is preferably 0.25 to 1.5 mm.

In the above conduction assisting material, the conductive material is preferably made of at least one selected from the group consisting of beryllium copper, titanium copper, copper / nickel / tin alloy, phosphor bronze, and copper / nickel / silicon alloy. Preferably, the insulating elastic material is made of rubber or resin.

Further, according to the present invention, there is provided a connector in which the above-mentioned or the above-mentioned conduction auxiliary material is interposed between connection elements. Further, according to the present invention, there is provided an integrated circuit socket using the above-mentioned or the above-mentioned conduction auxiliary material as a contact substrate for a terminal of an integrated circuit.

Further, according to the present invention, there is provided a method of manufacturing a conduction auxiliary material having a conduction member in a part or all of a large number of through holes provided in a sheet made of an insulating elastic material, A first step of forming a plurality of through holes at corresponding positions of two films made of an elastic material, and a second step of forming a structure in which a large number of sections having one or more cuts are formed from a conductive material. A third step of sandwiching the structure between the two films so that each piece is located in a through hole, pressing the two films together to form a sheet, and separating the pieces from each other. , A part of the two or more blades formed by the cut,
A method of manufacturing a conduction auxiliary material, comprising: a fourth step of bending the end of the blade portion from the opening by bending toward the opening existing on the same surface of the sheet among the two openings of the through hole. Is provided.

In the above manufacturing method, the pieces may be cut off from each other by punching the sheet, and the blades may be bent by punching the through holes.

Further, according to the present invention, there is provided a method for producing a conduction auxiliary material having a conduction member in a part or all of a large number of through holes provided in a sheet made of an insulating elastic material, comprising: Forming, at predetermined intervals, sections made of a conductive material having one or two or more cuts from a sheet having a layer made of a conductive material on one surface of a film made of an elastic material according to (1). Step, a second step of laminating another film made of an insulating elastic material on the film, covering the section, and pressing the two films into a sheet to form a sheet, using a laser near the section with a laser. A third step of forming a through-hole by removing the part, the part of the two or more blades formed by the cut is directed toward an opening existing on the same surface of the sheet among the two openings of the through-hole; Fold There is provided a method of manufacturing a conduction auxiliary material, comprising a fourth step of bending the end of the blade portion from the opening by bending.

In the above-described manufacturing method, the blade may be bent by punching a through-hole.

Further, in the above and the above-mentioned manufacturing method,
In the fourth step, another part of the blade may be bent toward an opening different from the opening existing in the direction in which the part of the blade is bent.

In the above and the above manufacturing method, it is preferable that each section has two blade portions formed by a single cut.

Further, in the above and the above manufacturing method,
The shape of the opening of the through hole is circular, and the diameter is 0.2 to
Preferably, it is 1.2 mm. Further, the pitch of the through holes is preferably 0.25 to 1.5 mm.

Further, in the above and the above-mentioned manufacturing method, at least one selected from the group consisting of beryllium copper, titanium copper, copper / nickel / tin alloy, phosphor bronze, and copper / nickel / silicon alloy is used as the conductive material. Is preferred.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, a conduction auxiliary material of the present invention is formed of a conductive material inside a large number of through holes 21 provided in a sheet 20 made of an insulating elastic material. The section 22 is configured by installing the section 22 with one end thereof fixed to the sheet. Each section has two or more blades 2 formed by one or two or more cuts, and a part of the two or more blades 2 is the same as a sheet of the two openings of the through hole 21. Is bent toward the opening existing in the surface of the blade, and the end of the blade portion protrudes from the opening.

The conduction auxiliary material shown in FIG. 1 is used as a contact substrate for a terminal of a BGA (spherical terminal) type integrated circuit. As shown in FIG.
However, by pushing the unfolded blade portion 2 a to the opposite side of the sheet 20, the tip of the bent blade portion 2 b is pressed against the connection element 3 existing on the opposite side of the sheet 20, and stable conduction is achieved. Is secured. or,
Since one end of the section 22 is fixed to the sheet 20, the section 22 functions as a leaf spring, and the section 22 and the spherical terminal 24.
Stable contact with

Further, since the conduction auxiliary material of the present invention can be made extremely thin by adjusting the thickness of the sheet, it is excellent in high-speed performance when applied to an integrated circuit socket, and Integrated circuit socket that can be used as a socket.

There is no particular limitation on the number and the mode of the cuts as long as two or more blade portions can be formed. For example, the cut pieces shown in FIGS. 3B and 3C can be used. However, in consideration of production efficiency and the like, it is preferable to use one having two blades formed by a single cut as shown in FIG.

The section 22 may be installed inside all the through holes according to the arrangement of the terminals of the integrated circuit.
It may be installed only inside some of the through holes.

In the conduction auxiliary material of the present invention, as shown in FIG. 7, at least one of the two or more blades 2 is bent toward an opening existing on one surface of the sheet 20 and the two or more blades 2 are bent. If at least another one of the blades 2 is bent toward the opening existing on the other surface of the sheet 20, it can be used as a contact board for a connector and a terminal of an LGA (flat terminal) type integrated circuit. The conductive auxiliary material 1 can be obtained.

By interposing the conduction auxiliary material 1 shown in FIG. 7 between the connection elements of the connector, the section 22 protruding from the sheet 20 effectively absorbs the distortion of the conduction surface,
Also, even if there is dust or the like on the conduction surface, reliable electrical conduction can be ensured. Further, since the conductive auxiliary material of the present invention uses an insulating elastic material, it can be applied to a case where the conductive surface of the connecting element of the connector is flat or curved.

Further, the conduction auxiliary material of the present invention can be appropriately cut out and used according to the size and shape of the conductive surface of the connector or the socket for an integrated circuit, and can easily cope with the difference in size and shape. . Note that when the conduction auxiliary material of the present invention is used as a contact substrate for a terminal of an integrated circuit, the sections need to be insulated from each other.

In the conduction auxiliary material of the present invention, the shape of the opening of the through hole may be any shape such as a rectangle, a triangle, a circle, and an ellipse, but is preferably a circle. or,
When the shape of the opening is circular, the diameter is preferably 0.2 to 1.2 mm. 0.2mm
If it is less than 1.2 mm, it is difficult to manufacture, and if it exceeds 1.2 mm, it is too large and there is no merit.

The pitch of the through holes is 0.25 to
It is preferably 1.5 mm. If it is less than 0.25 mm, sufficient assembling accuracy cannot be secured. If it exceeds 1.5 mm, there is no merit as compared with other packages such as PGA and QFP, and the effect of absorbing the distortion of the conductive surface is weakened. In addition, it is difficult to apply the method to a curved surface. Here, the pitch of the through holes refers to the size of the shortest distance between the center point of a certain through hole and the center point of another through hole located closest to the through hole.

The conductive material used for the conduction auxiliary material of the present invention includes, in addition to conductivity, abrasion resistance, flexibility, oxidation resistance,
The strength is required, and at least one selected from the group consisting of beryllium copper, titanium copper, copper / nickel / tin alloy, phosphor bronze, and copper / nickel / silicon alloy is preferably used. Among the above, when beryllium copper is used as the conductive material, the conduction auxiliary material of the present invention can impart fatigue characteristics and heat resistance, and can be used as a contact substrate of an integrated circuit inspection tool for a burn-in test. This is also possible. Therefore, in the present invention, beryllium copper or a material having properties equivalent to beryllium copper is particularly preferably used.

Although the conductivity of beryllium copper depends on its composition, it has a sufficient conductivity of 20 to 60% with respect to pure copper, and the Pickers hardness of copper is 80 to 100, while that of beryllium copper is 250 to 250%. ~ 400, which indicates that the abrasion resistance is excellent.

The composition of beryllium copper used for the conductive material constituting the conduction auxiliary material of the present invention is 0.2 to 3% by weight of beryllium in the total amount of copper as a main component, and 0.1% in total of nickel and cobalt. 1 to 3% by weight, and preferably contains 0.05 to 3% by weight in total of one or more elements selected from the group consisting of aluminum, silicon, iron, titanium, tin, magnesium, manganese, zinc or indium. 1.6 to 2% by weight, 0.2 to 1 respectively
%, More preferably 0.05 to 1% by weight, 1.6 to 2% by weight, 0.2 to 0.6% by weight, 0.0 to 2% by weight.
More preferably, the content is 5 to 1% by weight.

When the beryllium content is more than 3% by weight, the conductivity is undesirably reduced. Further, even if the beryllium content is larger than 2% by weight, a corresponding increase in strength cannot be obtained, which is uneconomical. On the other hand, 0.2% by weight
If less, the strength of the wound spring is insufficient. When the total content of nickel and cobalt is more than 3% by weight, the conductivity is reduced. When the total content is less than 0.2% by weight, the increase in strength due to the addition of beryllium is suppressed, and the amount of beryllium must be further increased. Must. Further, when the total amount of aluminum and other elements is more than 3% by weight, the conductivity is reduced, and when it is less than 0.05% by weight, the strength particularly at high temperatures is insufficient.

The thickness of the section as a conductive member is 0.0
1 to 0.1 mm, preferably 0.02 to 0.
More preferably, it is 05 mm. If the thickness is less than 0.01 mm, it is difficult to obtain an appropriate contact load because the strength of the piece is too small. If the thickness exceeds 0.1 mm, the strength of the piece becomes too large, and the terminal of the integrated circuit is Cannot be strongly pressed against the connection element existing on the opposite side of the sheet, and it becomes difficult to secure stable conduction.

The sheet constituting the conduction auxiliary material of the present invention preferably has a thickness of 0.06 to 0.66 mm,
More preferably, it is 0.1 to 0.2 mm. 0.0
If the thickness is less than 6 mm, the mechanical strength is reduced, and a problem occurs in durability. On the other hand, if it is thicker than 1.0 mm, it is difficult to interpose between the connecting elements of the connector.

The elastic material constituting the conduction assisting material is required to have heat resistance, weather resistance, and the like, and rubber such as silicon rubber and synthetic rubber, or resin such as polymer, polyimide, and engineering resin is used. Particularly preferably used.

The conduction auxiliary material of the present invention is installed between the connection elements constituting the connector such that one surface contacts the conduction surface of one connection element and the other surface contacts the conduction surface of the other connection element. The conductive surface of the connecting element is pressed against the conductive auxiliary material by the fixing tool of the connector or the like, and the conduction is ensured.
Further, the conduction auxiliary material of the present invention may be adhered to the conduction surface of one connection element of the connector and used as a part of the connector.

Further, the conduction auxiliary material of the present invention can be used as a member constituting the integrated circuit socket and as a contact substrate with the terminal of the integrated circuit. The integrated circuit socket has characteristics of the integrated circuit. Test instruments used for testing are also included.

Among the conduction auxiliary members of the present invention, the conduction auxiliary member shown in FIG. 1 whose section is bent only in one direction is, as shown in FIG. 5, two films 39 made of an insulating elastic material. A first step of forming a plurality of through-holes 21 at the corresponding positions (FIG. 5A), a step of forming a structure 4 in which a large number of sections 22 having one or more cuts are formed from a conductive material. Two steps (FIG. 5B), the two films 3
9, the third step (FIG. 5C) in which the structure 4 is sandwiched so that each piece 22 is located in the through hole 21 and the two films 39 are pressed into a sheet. By separating the pieces 22 from each other and bending a part of the two or more blade portions formed by the cut toward the opening existing on the same surface of the sheet among the two openings of the through hole, It is manufactured through a fourth step (FIG. 5D) of projecting the end of the blade from the opening.

As means for separating the sections from each other,
A punch, a laser or the like can be used.
As shown in (d), the sheet is preferably punched from above, and the means for bending the blade is preferably punched into the through hole. In addition,
It is preferable to perform cutting of each section and bending of the blade portion at the same time using a punching device having two punching members from the viewpoint of improving production efficiency. The form of punching may be a full type or a progressive type.

The conductive auxiliary material shown in FIG. 1 in which the section is bent only in one direction is made of a conductive material on one surface of a film 39a made of an insulating elastic material, as shown in FIG. From the sheet having the layer 5, by etching, 1
Alternatively, a first step of forming pieces 22 made of a conductive material having two or more cuts at predetermined intervals (FIG. 6)
(A)) A second step of laminating another film 39b made of an insulating elastic material on the film 39a to cover the section 22, and pressing the two films 39 to form a sheet (FIG. 6) (B)), a third step of forming a through-hole 21 by removing the film in the vicinity of the section 22 with a laser (FIG. 6C), a part of the two or more blades 2 formed by the cut. Is bent toward the opening existing on the same surface of the sheet among the two openings of the through-hole 21 so that the end of the blade 2 protrudes from the opening (FIG. 6 ( It can also be manufactured via d)). As means for bending the blade part 2, punching is preferably performed on the through hole.

Furthermore, the conduction auxiliary material shown in FIG. 7 in which the section is bent in both directions is provided in the fourth step of the manufacturing method shown in FIG. 5 or FIG. It is manufactured by bending another part of the blade 2 toward an opening different from the existing opening.

In order to bend the blade 2 in different directions, it is preferable to simultaneously bend in both directions by bidirectional punching as shown in FIG. 8 from the viewpoint of improving production efficiency.

In the method of manufacturing a conduction auxiliary material according to the present invention, the through holes are formed by a punch, a drill, a laser, or the like. The compression bonding of the two films is performed by a conventional method, but is preferably performed by thermocompression bonding.

[0054]

EXAMPLES The present invention will be described in more detail with reference to the illustrated examples, but the present invention is not limited to these examples.

(Example) A conduction auxiliary material shown in FIG. 7 in which the section was bent in both directions was manufactured by the following method.

As shown in FIG. 6A, the height is 50 mm,
From a sheet having a layer 5 made of beryllium copper on one surface of a polyimide film 39a having a width of 50 mm and a thickness of 0.125 mm, pieces 22 having one notch were formed at intervals of 0.5 mm by etching. .

Next, as shown in FIG. 6B, another film 39b made of polyimide having the same dimensions is laminated on the film 39a to cover the section 22, and the two films are thermocompressed. Sheet 20 was obtained.

Next, as shown in FIG. 6C, the film near the section 22 was removed by laser,
Through holes 21 having a diameter of 0.4 mm were formed at a pitch of mm.

Finally, as shown in FIG.
1 was punched from both directions, and two blades 2 provided on each section 22 were bent so as to face in opposite directions.

[0060]

According to the conduction auxiliary material of the present invention, a section formed of a conductive material is fixed to one end of a section formed of a conductive material inside a large number of through holes provided in a sheet made of an insulating elastic material. It is configured by installing in a state. Each section is formed by one or two or more cuts.
A part of the two or more blades is bent toward an opening existing on the same surface of the sheet among the two openings of the through hole, and an end of the blade is formed. Protrudes from the opening.

Therefore, when used as a contact substrate with a terminal of a BGA (spherical terminal) type integrated circuit, the spherical terminal pushes the unfolded blade portion to the opposite side of the sheet, so that the bent blade portion is pressed. Is pressed against the connection element located on the opposite side of the sheet, and stable conduction is ensured. Also, since one end of the section is fixed to the sheet, the section functions as a leaf spring,
Stable contact between the section and the spherical terminal is also ensured.

Also, at least one of the two or more blades is bent toward an opening existing on one surface of the sheet, and at least another of the two or more blades is bent on the other surface of the sheet. Can be used as a contact board for a connector and a terminal of an LGA (planar terminal) type integrated circuit. In this case, the section protruding from the sheet can effectively absorb the distortion of the conductive surface of the connection element of the connector, and secure electrical conduction even if there is dust on the conductive surface. Further, since the insulating elastic material is used, the present invention can be applied to a case where the conductive surface of the connection element of the connector is a flat surface or a curved surface.

Further, since the conductive auxiliary material of the present invention uses an elastic material, it can be appropriately cut out and used according to the size and shape of the conductive surface of the connector or the socket for an integrated circuit. The difference can be easily handled.

Further, the conduction auxiliary material of the present invention is thin,
Since it is excellent in high speed, it can be applied to a socket for an integrated circuit for mounting.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a conduction auxiliary material of the present invention.

FIG. 2 is a schematic cross-sectional view illustrating the operation of the conduction auxiliary material of the present invention.

FIG. 3 is a perspective view showing an embodiment of a section constituting a conduction auxiliary material of the present invention.

FIG. 4 is a schematic sectional view showing a contact board of a conventional integrated circuit socket.

FIG. 5 is a schematic view showing one example of a method for producing a conduction auxiliary material of the present invention.

FIG. 6 is a schematic view showing another example of the method for producing a conduction auxiliary material of the present invention.

FIG. 7 is a perspective view showing another example of the conduction auxiliary material of the present invention.

FIG. 8 is a perspective view for explaining bidirectional punching.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conductivity auxiliary material, 2 ... Blade part, 3 ... Connection element, 4 ... Structure in which many pieces were connected, 5 ... Layer made of conductive material, 2
0 ... sheet, 21 ... through hole, 22 ... section, 24 ... spherical terminal, 25 ... integrated circuit, 27 ... bending part, 28 ... contact board, 29 ... terminal support part, 30 ... silicone rubber, 3
1: fine metal wire, 32: rubber sheet, 33: conductive particles,
34: wound spring; 35: terminal contact member; 36: punch hole; 39: film.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) H01R 33/76 H01R 23/68 H01R 43/00

Claims (20)

(57) [Claims] 1. A conductive auxiliary material having a conductive member inside a part or all of a plurality of through holes provided in a sheet made of an insulating elastic material, wherein the conductive member is a section made of a conductive material. The slice is fixed to the sheet at one end, and has two or more blades formed by one or more cuts, and a part of the two or more blades formed in each slice Is bent toward the opening existing on the same surface of the sheet among the two openings of the through hole, so that the end of the blade portion protrudes from the opening. Conduction aid. 2. The conduction assisting material according to claim 1, wherein two blade portions are formed by providing a single cut at the other end of each section. 3. The sheet is fixed to the sheet by laminating two sheets made of an insulating elastic material, and sandwiching one end of the section with the two sheets. Or the conduction auxiliary material according to 2. 4. The shape of the opening of the through hole is circular,
The conduction auxiliary material according to claim 1, 2 or 3, wherein the diameter is 0.2 to 1.2 mm. 5. The pitch of the through holes is 0.25 to 1.5 m.
The conduction auxiliary material according to claim 1, 2, 3, or 4, which is m. 6. The method according to claim 1, wherein the conductive material is at least one selected from the group consisting of beryllium copper, titanium copper, copper / nickel / tin alloy, phosphor bronze, and copper / nickel / silicon alloy. The conduction auxiliary material according to claim 1. 7. The conduction auxiliary material according to claim 1, wherein the insulating elastic material is rubber or resin. 8. The conduction assisting device according to claim 1, wherein at least one of said two or more blade portions is bent toward an opening existing on the other surface of said sheet. Wood. 9. A method of manufacturing a conductive auxiliary material having a conductive member in a part or all of a plurality of through holes provided in a sheet made of an insulating elastic material, comprising: A first step of forming a plurality of through holes at corresponding positions of one film, a second step of forming a structure in which a plurality of sections having one or two or more cuts are formed from a conductive material, A third step of sandwiching the structure between the films so that each piece is located in the through-hole, pressing the two films together to form a sheet, separating the pieces from each other, and forming the pieces by the notches. A part of the two or more blades is bent toward an opening existing on the same surface of the sheet among the two openings of the through-hole, so that an end of the blade is connected to the opening. From the fourth step A method for producing a conduction auxiliary material, comprising: 10. The method according to claim 9, wherein each piece is cut off by punching the sheet, and the blade is bent by punching the through hole. 11. A method of manufacturing a conductive auxiliary material having a conductive member in a part or all of a plurality of through holes provided in a sheet made of an insulating elastic material, comprising: a film made of an insulating elastic material. By etching from a sheet having a layer made of a conductive material on one side of
A first step of forming a section made of a conductive material having one or more cuts at predetermined intervals, laminating another film made of an insulating elastic material on the film to cover the section, A second step of pressing two films into a sheet to form a sheet; a third step of forming a through hole near the section; a part of the two or more blades formed by the cut is formed into two openings in the through hole A fourth step of bending an end of the blade portion from the opening by bending the sheet toward an opening existing on the same surface of the sheet. Method. 12. The method according to claim 11, wherein the blade is bent by punching the through hole. 13. In the fourth step, the other part of the blade is bent toward an opening different from the opening existing in the direction in which the part of the blade is bent.
13. The method for producing a conduction auxiliary material according to 10, 11, or 12. 14. The method according to claim 9, wherein each section has two blade portions formed by a single cut. 15. The opening of the through hole has a circular shape and a diameter of 0.2 to 1.2 mm.
5. The method for producing a conduction auxiliary material according to any one of 4. 16. The pitch of the through holes is 0.25 to 1.5.
The method for producing a conduction auxiliary material according to any one of claims 9 to 15, wherein the distance is in mm. 17. The conductive material according to claim 9, wherein the conductive material is at least one selected from the group consisting of beryllium copper, titanium copper, copper / nickel / tin alloy, phosphor bronze, and copper / nickel / silicon alloy. The method for producing a conduction auxiliary material according to claim 1. 18. The method according to claim 9, wherein the insulating elastic material is rubber or resin. 19. A connector, wherein the conduction assisting material according to claim 8 is interposed between connection elements. 20. A socket for an integrated circuit, wherein the conductive auxiliary material according to claim 1 is used as a contact substrate for a terminal of an integrated circuit.