JPH0417282A - Manufacture of anisotropic conductive sheet - Google Patents
Manufacture of anisotropic conductive sheetInfo
- Publication number
- JPH0417282A JPH0417282A JP12237390A JP12237390A JPH0417282A JP H0417282 A JPH0417282 A JP H0417282A JP 12237390 A JP12237390 A JP 12237390A JP 12237390 A JP12237390 A JP 12237390A JP H0417282 A JPH0417282 A JP H0417282A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- sheet
- block
- metal fabric
- fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002184 metal Substances 0.000 claims abstract description 67
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 abstract description 5
- 241000345998 Calamus manan Species 0.000 abstract 1
- 235000012950 rattan cane Nutrition 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 11
- 229920002379 silicone rubber Polymers 0.000 description 7
- 239000004945 silicone rubber Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 238000003486 chemical etching Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000212892 Chelon Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、シートの厚さ方向に良好な導電性を有し、
平面方向には絶縁を保っている、例えばＩＣカードの端
子等に用いられる異方導電性シートの製造方法に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a sheet having good conductivity in the thickness direction,
The present invention relates to a method of manufacturing an anisotropically conductive sheet that maintains insulation in a planar direction and is used, for example, as a terminal for an IC card.
従来のこの種のシートの製造方法としては、（１）導電
性カーボンブラック、金属粒、金属メツキ粒、カーボン
短繊維、金属端繊維などをシリコーンゴムなどの有機ポ
リマーに混合して導電性コンパウンドを作り、これと絶
縁性のポリマーシートとを交互に積層接着してブロック
に形成し、これを積層面に直角に切断して一定の厚さに
する方法。Conventional methods for manufacturing this type of sheet include (1) mixing conductive carbon black, metal grains, metal plating grains, short carbon fibers, metal end fibers, etc. with an organic polymer such as silicone rubber to form a conductive compound; This method is made by laminating and gluing insulating polymer sheets alternately to form a block, which is then cut perpendicular to the laminated surface to a certain thickness.
（２）導線を枠に整列させて張設して型内に設置し、シ
リコーンゴムを注型してブロックに成型し、これを導線
の方向に直角に切断して一定の厚さにする方法。(2) A method of aligning and stretching conductor wires in a frame, placing them in a mold, casting silicone rubber to form a block, and cutting this at right angles to the direction of the conductor wires to a certain thickness. .
（３）金属箔をケミカルエツチングなどですだれ状の導
線に作成し、これを絶縁層を介して積層接着し、スライ
スする方法、
（４）前記（３）におけるすだれ状の導線を絶縁シート
上面に形成し、これを積層接着してスライスする方法（
特開昭６１−２６０５７４号公報参照）、などがある、
なお、（１）の方法によって得られるシートはシート面
にしま状の導電部が存在してそのしま状導電部が厚さ方
向に両面間でつながっているものであり、 （２）〜（
４）の方法によって得られるシートはシート面に独立し
た点状の導電部が存在してその点状導電部が厚さ方向に
両面間でつながっているものである。(3) A method of creating interdigitated conductive wires using chemical etching or the like from metal foil, laminating and adhering these through an insulating layer, and slicing them. method of forming, laminating and gluing and slicing (
(Refer to Japanese Patent Application Laid-Open No. 61-260574), etc.
Note that the sheet obtained by the method (1) has striped conductive parts on the sheet surface, and the striped conductive parts are connected on both sides in the thickness direction, and (2) ~ (
The sheet obtained by method 4) has independent dot-like conductive parts on the sheet surface, and the dot-like conductive parts are connected between both surfaces in the thickness direction.
前記（１）に記載の方法では、導電部が導電性コンパウ
ンドであるため、シートの導電方向の電気抵抗が大きい
問題がある。In the method described in (1) above, since the conductive portion is made of a conductive compound, there is a problem in that the electrical resistance of the sheet in the conduction direction is large.
前記（２）に記載の方法では、導電部が導線であること
から電気抵抗の問題はなくなるが、導線を型内に高密度
で適切に設置することが容易でなく、実際には導線密度
が粗くなることから、端子として用いた場合に導線の接
触数が少なくなって接続の確実性が低いという問題があ
る。In the method described in (2) above, the problem of electrical resistance is eliminated because the conductive part is a conductive wire, but it is not easy to properly install the conductive wire in a mold at a high density, and in reality, the conductor density is low. Because of the roughness, there is a problem that when used as a terminal, the number of contacts of the conductor wire is reduced and the reliability of the connection is low.
前記（３） 、 （４）に記載の方法では、電気抵抗の
問題はないが、ケミカルエツチングにより導線を形成し
ており、一般にケミカルエツチングでは導線の密度が高
くなるほどコストが高くなり、実用性が遠ざかるという
問題がある。In the methods described in (3) and (4) above, there is no problem with electrical resistance, but the conducting wire is formed by chemical etching, and in general, with chemical etching, the higher the density of the conducting wire, the higher the cost and the less practical it is. There is a problem of distance.
この発明は、上述したような従来の問題から、シート面
に直角な方向の導電性を与えている導線を高密度で配置
することができ、しかも製造コスト面でエツチングを利
用する方法よりも有利である異方導電性シートの製造方
法を提供することを課題とする。This invention solves the above-mentioned conventional problems by making it possible to arrange conductive wires that provide conductivity in the direction perpendicular to the sheet surface at a high density, and is more advantageous than the method using etching in terms of manufacturing costs. An object of the present invention is to provide a method for manufacturing an anisotropically conductive sheet.
第１の発明は、極めて細い金属細線を用いて経糸又は緯
糸のいずれか一方を互いに接触しないように高密度に配
置し他方をきわめて疎に配置したすだれ状金属織物を形
成し、その金属織物と極めて薄い絶縁性シートとを交互
に積層し互いに接着してブロックを形成し、そのブロッ
クを前記金属織物の高密度に配置した金属細線に直角な
方向の面に沿って一定の肉圧に切断することを特徴とす
る。The first invention uses extremely thin metal wires to form a sash-like metal fabric in which either the warp or the weft is arranged in a high density so as not to touch each other, and the other is arranged very sparsely, and the metal fabric and Extremely thin insulating sheets are alternately laminated and adhered to each other to form a block, and the block is cut to a constant thickness along a plane perpendicular to the densely arranged metal wires of the metal fabric. It is characterized by
第２の発明は、経糸又は緯糸のいずれか一方に極めて細
い金属細線を用い互いに接触しないように高密度に配置
し他方の緯糸又は経糸に絶縁性の糸を用いて金属織物を
形成し、その金属織物と極めて薄い絶縁性シートを交互
に積層し互いに接着してブロックを形成し、そのブロッ
クを前記金属織物の高密度に配置した金属細線に直角な
方向に沿って一定の肉圧に切断することを特徴とする。The second invention is to form a metal fabric by using extremely thin metal wires in either the warp or the weft and arranging them at high density so as not to touch each other, and using insulating threads in the other weft or warp. A metal fabric and an extremely thin insulating sheet are alternately laminated and bonded to each other to form a block, and the block is cut to a constant thickness along a direction perpendicular to the densely arranged metal wires of the metal fabric. It is characterized by
第１の発明は、金属織物を極めて細い金属細線のみで形
成しであるから、疎に配置した金属細線のない部分が利
用されるが、経糸と緯糸の双方が同様な可撓性を有する
金属細線であるためすだれ状に形成してもシート状を保
持し得るものとなり、高密度で配置される金属細線がか
なり正確なピッチに保持される。従って、ブロック形成
において、特に金属細線のピッチを維持するために枠に
張設しておく必要がなく、シート状のままで簡単に取扱
うことができる。In the first invention, since the metal fabric is formed only from extremely thin metal wires, sparsely arranged parts without thin metal wires are used, but both the warp and weft are made of metal having similar flexibility. Since the metal wires are thin, they can be held in a sheet shape even when formed into a blind shape, and the thin metal wires arranged at high density can be maintained at a fairly accurate pitch. Therefore, when forming a block, there is no need to stretch the thin metal wires on a frame in order to maintain the pitch, and the metal wires can be easily handled as they are in sheet form.
第２の発明は、経糸と緯糸の一方に金属織物を極めて細
い金属細線を用い他方に絶縁性の糸を用いたものである
から、その絶縁性の糸のある部分もそのまま利用でき、
従って絶縁性の糸をある程度布に配置してもよく、金属
織物単独の状態でも金属細線のピッチが正確に保持され
ている。これによって第１の発明と同様にブロック形成
において、金属織物を簡単に取扱うことができる。In the second invention, since the metal fabric is made of extremely thin metal wires for one of the warp and weft and insulating thread is used for the other, the part with the insulating thread can be used as is.
Therefore, insulating threads may be arranged on the cloth to some extent, and the pitch of the thin metal wires can be maintained accurately even in the state of the metal fabric alone. As a result, the metal fabric can be easily handled in block formation as in the first invention.
上記金属細線は、第１及び第２の発明において金属織物
として、つまりシート状物として所望ピッチに配列した
状態で扱うことができる点でブロックの形成が非常に容
易となる。そして、金属細線を織物にする技術は、従来
半導体工業向けの精密スクリーン用の織機を使って可能
である。織機ラインの途中で糸ずれ防止用のバインダ処
理も可能である。In the first and second inventions, the metal thin wires can be handled as a metal fabric, that is, as a sheet-like object, arranged at a desired pitch, making it very easy to form a block. The technology for making thin metal wires into textiles is possible using conventional precision screen looms for the semiconductor industry. It is also possible to apply a binder treatment to prevent yarn slippage in the middle of the loom line.
この発明の１実施例を第１図及び第２図を用いて説明す
る０図は異方導電性シート１を示し、２は導電部、３は
絶縁部である。One embodiment of the present invention will be explained using FIGS. 1 and 2. FIG. 0 shows an anisotropically conductive sheet 1, 2 is a conductive part, and 3 is an insulating part.
この異方導電性シートｌは、次のようにして製造したも
のである。This anisotropic conductive sheet 1 was manufactured as follows.
まず、金属織物を準備する。この金属織物は、半導体工
業向けの精密スクリーン用の織機を使って織ったもので
、経糸、緯糸共に太さ約２０終■、材質Ｓ Ｕ Ｓ ３
１６のフィラメント（金属細線）である。経糸を５０Ｂ
ｍのピッチに整経し、緯糸を１０＋ｓ鵬のピッチで打込
んである。金属織物の厚さは約３０舊■である。この金
属織物は油剤を除去する処理を施こしてから、接着用プ
ライマー処理を施こしておく。First, prepare the metal fabric. This metal fabric is woven using a precision screen loom for the semiconductor industry, and the warp and weft are both approximately 20 mm thick and made of SUS 3.
16 filaments (thin metal wires). 50B warp
The warp is warped at a pitch of m, and the weft is inserted at a pitch of 10+s. The thickness of the metal fabric is about 30 mm. This metal fabric is treated to remove oil and then treated with an adhesive primer.
別ニ、シリコーンゴムのシートを離形シート上に厚さ３
０延■で形成して、その上に前記金属織物を積層して接
着させ厚さ約５０給鵬のシートとする。これを多数準備
しておいて、順次離形シートを剥離しながら、積層し、
精密プレスを用いて押圧接着してブロックに形成する。Separately, place a sheet of silicone rubber on the release sheet to a thickness of 3
The metal fabric is laminated and adhered thereon to form a sheet with a thickness of about 50 mm. Prepare a large number of these and stack them one by one while peeling off the release sheet,
Press and bond using a precision press to form a block.
このとき上面及び下面に適当な厚さのシリコーンゴムの
シートを積層接着する。At this time, silicone rubber sheets of appropriate thickness are laminated and adhered to the upper and lower surfaces.
得られたブロックを、高密度に配置されている金属線に
直角な方向の面に沿って、厚さｔに、例えば２００ Ｉ
Ｌｍに切断して異方導電性シートｌとする。The obtained block is rolled to a thickness t, for example 200 I, along a plane perpendicular to the densely arranged metal wires.
Cut into Lm to obtain an anisotropic conductive sheet l.
このようにして得られた異方導電性シート１は、導電部
２が金属細線で形成され、その金属細線は高密度ではあ
るが互いに電気的には絶縁部３によって絶縁され、一端
がシートの上面に他端がシートの下面に露出している。In the anisotropically conductive sheet 1 obtained in this manner, the conductive portion 2 is formed of thin metal wires, and although the thin metal wires are dense, they are electrically insulated from each other by the insulating portion 3, and one end of the sheet is The other end on the top surface is exposed on the bottom surface of the sheet.
そのピッチ（導電部子絶縁部）は、金属織物の面に沿う
方向に約５０ｐｍ （経糸ピッチに等しい）、金属織
物に直角な方向にも約５０絡腸である。これらのピッチ
を増大させることは、問題なく可能である。すなわち、
経糸のピッチを変更することや、ブロックを形成する際
にシリコーンゴムのシートを別に介在させることなどで
可能である。この異方導電性シート１は厚さ方向に少し
弾性変形する。この点はＩＣカード用端子に用いる場合
に圧接力が生じる点及び接触面積が増大する点で有効で
ある。The pitch (conductive element insulating part) is about 50 pm (equal to the warp pitch) in the direction along the surface of the metal fabric, and about 50 chelon in the direction perpendicular to the metal fabric. It is possible to increase these pitches without any problem. That is,
This can be done by changing the pitch of the warp yarns or by interposing a separate silicone rubber sheet when forming the block. This anisotropic conductive sheet 1 is slightly elastically deformed in the thickness direction. This point is effective in that pressure contact force is generated and the contact area is increased when used as an IC card terminal.
上記実施例において、金属織物の経糸及び緯糸を共に金
属細線としたが、一方を絶縁性の糸としてもよい、なお
、絶縁性の糸は天然繊維、合成繊維等で金属の場合より
も太くなるが、絶縁部に収まるものであれば使用でき、
密に配置することによって金属細線間の絶縁性が確実と
なる点ではより製造に有利である。In the above example, both the warp and the weft of the metal fabric were made of thin metal wires, but one of them may be made of insulating thread. Note that the insulating thread may be natural fiber, synthetic fiber, etc., and is thicker than that of metal. However, it can be used as long as it fits in the insulation part.
By arranging them closely, the insulation between the thin metal wires can be ensured, which is more advantageous for manufacturing.
上記実施例において、絶縁部はシリコーンゴムの他に１
、天然ゴム、合成ゴム、ポリエチレン、ポリプロピレン
、ナイロン、ポリエステル、ポリイミド等の使用も可能
である。In the above embodiment, the insulating part is made of silicone rubber as well as silicone rubber.
, natural rubber, synthetic rubber, polyethylene, polypropylene, nylon, polyester, polyimide, etc. can also be used.
この発明によれば、金属細線を金属織物として用いたこ
とにより、より細い導電部をより小さいピッチで確実に
絶縁して配列した導電部の電気抵抗の小さい異方導電性
シートを大量生産に適した簡単な方法で製造でき、コス
トダウン効果がきわめて大きい。According to the present invention, by using thin metal wire as a metal fabric, an anisotropically conductive sheet with a small electrical resistance of conductive parts, in which thinner conductive parts are reliably insulated and arranged at a smaller pitch, is suitable for mass production. It can be manufactured using a simple method, and the cost reduction effect is extremely large.
図のＡ−Ａ断面図である。
１・・・・異方導電性シート、２・・・・導電部（金属
細線）３・・・・絶縁部。It is an AA sectional view of the figure. 1... Anisotropic conductive sheet, 2... Conductive part (metal thin wire) 3... Insulating part.
Claims (2)
れか一方を互いに接触しないように高密度に配置し他方
をきわめて疎に配置したすだれ状金属織物を形成し、そ
の金属織物と極めて薄い絶縁性シートとを交互に積層し
互いに接着してブロックを形成し、そのブロックを前記
金属織物の高密度に配置した金属細線に直角な方向の面
に沿って一定の肉圧に切断することを特徴とする異方導
電性シートの製造方法。(1) Using extremely thin metal wires, a sash-like metal fabric is formed in which either the warp or the weft is arranged in high density so as not to touch each other, and the other is arranged very sparsely, and the metal fabric is insulated with an extremely thin layer. The method is characterized in that a block is formed by alternately laminating and adhering the metal sheets to each other, and the block is cut to a constant thickness along a plane perpendicular to the thin metal wires arranged in a high density of the metal fabric. A method for manufacturing an anisotropically conductive sheet.
線を用い互いに接触しないように高密度に配置し他方の
緯糸又は経糸に絶縁性の糸を用いて金属織物を形成し、
その金属織物と極めて薄い絶縁性シートを交互に積層し
互いに接着してブロックを形成し、そのブロックを前記
金属織物の高密度に配置した金属細線に直角な方向に沿
って一定の肉圧に切断することを特徴とする異方導電性
シートの製造方法。(2) Forming a metal fabric by using extremely thin metal wires in either the warp or weft and arranging them at high density so as not to touch each other, and using insulating threads in the other weft or warp,
The metal fabric and extremely thin insulating sheets are alternately laminated and adhered to each other to form a block, and the block is cut to a constant thickness along a direction perpendicular to the metal thin wires arranged in high density in the metal fabric. A method for producing an anisotropically conductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12237390A JPH0417282A (en) | 1990-05-10 | 1990-05-10 | Manufacture of anisotropic conductive sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12237390A JPH0417282A (en) | 1990-05-10 | 1990-05-10 | Manufacture of anisotropic conductive sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417282A true JPH0417282A (en) | 1992-01-22 |
Family
ID=14834242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12237390A Pending JPH0417282A (en) | 1990-05-10 | 1990-05-10 | Manufacture of anisotropic conductive sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100992579B1 (en) * | 2003-09-06 | 2010-11-08 | 자화전자 주식회사 | A electric heater |
| JPWO2011077555A1 (en) * | 2009-12-25 | 2013-05-02 | 株式会社アドバンテスト | Socket, socket board, and electronic component testing apparatus |
| KR20210076129A (en) | 2018-11-21 | 2021-06-23 | 미쓰이 가가쿠 가부시키가이샤 | Anisotropically conductive sheet, anisotropically conductive composite sheet, anisotropically conductive sheet set, electrical inspection device and electrical inspection method |
| KR20210118161A (en) | 2019-02-28 | 2021-09-29 | 미쓰이 가가쿠 가부시키가이샤 | Anisotropic conductive sheet, electrical inspection device and electrical inspection method |
-
1990
- 1990-05-10 JP JP12237390A patent/JPH0417282A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100992579B1 (en) * | 2003-09-06 | 2010-11-08 | 자화전자 주식회사 | A electric heater |
| JPWO2011077555A1 (en) * | 2009-12-25 | 2013-05-02 | 株式会社アドバンテスト | Socket, socket board, and electronic component testing apparatus |
| KR20210076129A (en) | 2018-11-21 | 2021-06-23 | 미쓰이 가가쿠 가부시키가이샤 | Anisotropically conductive sheet, anisotropically conductive composite sheet, anisotropically conductive sheet set, electrical inspection device and electrical inspection method |
| US11860193B2 (en) | 2018-11-21 | 2024-01-02 | Mitsui Chemicals, Inc. | Anisotropic conductive sheet, anisotropic conductive composite sheet, anisotropic conductive sheet set, electric inspection device and electric inspection method |
| KR20210118161A (en) | 2019-02-28 | 2021-09-29 | 미쓰이 가가쿠 가부시키가이샤 | Anisotropic conductive sheet, electrical inspection device and electrical inspection method |
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