JPS6279281A - Anisotropic electrically conductive adhesive - Google Patents
Anisotropic electrically conductive adhesiveInfo
- Publication number
- JPS6279281A JPS6279281A JP22057585A JP22057585A JPS6279281A JP S6279281 A JPS6279281 A JP S6279281A JP 22057585 A JP22057585 A JP 22057585A JP 22057585 A JP22057585 A JP 22057585A JP S6279281 A JPS6279281 A JP S6279281A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- carbon
- electrode
- electrodes
- electrically conductive
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
- H01L2224/29298—Fillers
- H01L2224/29499—Shape or distribution of the fillers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の技術分野〕 この発明は異方導電性接着剤に関するものである。[Detailed description of the invention] [Technical field of invention] This invention relates to an anisotropically conductive adhesive.
(発明の技術的背景とその問題点)
異方導電性接着剤は周知のように、絶縁性接着剤中に多
数の導電性粒子を混入したものであり、この異方導電性
接着剤は、例えば配線基板面の電極と液晶表示パネルの
端子電極との接続や、配線基板面の電極と半導体チップ
の電極との接続など、2つの部材の電極の接続に使用さ
れている。この異方導電性接着剤としては、従来、導電
性粒子としてニッケル等の導電性金属粒子を用いたもの
と、カーボン粒子を用いたものとが知られている。(Technical background of the invention and its problems) As is well known, an anisotropic conductive adhesive is an insulating adhesive mixed with a large number of conductive particles. For example, it is used to connect electrodes of two members, such as connecting an electrode on a wiring board and a terminal electrode of a liquid crystal display panel, or connecting an electrode on a wiring board and an electrode on a semiconductor chip. As this anisotropic conductive adhesive, there are conventionally known adhesives that use conductive metal particles such as nickel as conductive particles and those that use carbon particles.
第2図は異方導電性接着剤によって配線基板面の電極と
液晶表示パネルの端子電極を接続した状態を示したもの
で、図中1は例えばポリエステルフィルム面に配I(図
示せず)を形成したフレキシブル配線基板、3は液晶表
示パネルであり、配線基板1面の表示パネル接続部には
液晶表示パネル3の各端子電極4,4とそれぞれ対向さ
せて表示パネル接続電極2,2が形成されている。また
、5は異方導電性接着剤である。この異方導電性接着剤
5は、ホットメルト型(熱再活性化型)の絶縁性接着剤
6中に多数の導電性粒子7.7・・・を粒子同志が連続
的に接触し合わないような密度でほぼ均一に分布するよ
うに混入したもので、配線基板1面の電極2.2と液晶
表示パネル3の端子電極4,4とは、その間に介在され
た導電性粒子7゜7・・・によって導通接続されるとと
もに絶縁性接着剤6によって接着されている。なお、前
記異方導電性接着剤5中の導電性粒子7.7・・・は、
全ての粒子が1個11独立して分布しているとは限らず
、複数個(2〜3個)の粒子が図示のように接触し合っ
ている部分もかなり高い比率で存在しているが、このよ
うに複数個の粒子が接触していても、この粒子と他の粒
子とは互いに接触し合わないように分布しており、従っ
て、多数の粒子が連続的に接触して隣接する電極同志を
短絡させてしまうことはない。Figure 2 shows the state in which the electrodes on the wiring board and the terminal electrodes of the liquid crystal display panel are connected using an anisotropic conductive adhesive. The formed flexible wiring board 3 is a liquid crystal display panel, and display panel connection electrodes 2, 2 are formed at the display panel connection part on one side of the wiring board so as to face each terminal electrode 4, 4 of the liquid crystal display panel 3, respectively. has been done. Further, 5 is an anisotropically conductive adhesive. This anisotropic conductive adhesive 5 has a large number of conductive particles 7.7 in a hot melt type (heat reactivation type) insulating adhesive 6, so that the particles do not come into continuous contact with each other. The electrodes 2.2 on the wiring board 1 and the terminal electrodes 4, 4 on the liquid crystal display panel 3 have conductive particles 7°7 interposed between them. . . , and are bonded with an insulating adhesive 6. The conductive particles 7.7 in the anisotropic conductive adhesive 5 are as follows:
Not all particles are distributed independently, and there are quite a high proportion of parts where multiple (2 to 3) particles are in contact with each other as shown in the figure. , Even if multiple particles are in contact with each other in this way, this particle and other particles are distributed in such a way that they do not come into contact with each other. Don't short-circuit your comrades.
この異方導電性接着剤5による上記配線基板1面の電極
2.2と液晶表示パネル3の端子電極4゜4との接続は
、配線基板1と液晶表示パネル3との一方例えば配線基
板1の電極形成面上に異方導電性接着剤5を塗布するか
、またはあらかじめシートに形成しておいた異方導電性
接着剤5を重ね、その上に液晶表示パネル3をその電極
4.4が配線基板1の電極2,2と対向するように重ね
て加熱加圧することによって行なわれており、このよう
に配線基板1と液晶表示パネル3とをその電極2.4間
に異方導電性接着剤5を介在させて加熱加圧すると、両
方の電極2.4が導電性粒子7゜7・・・を介して導通
接続されるとともに、この両電極2,4が導電性接着剤
6によって接着される。The connection between the electrodes 2.2 on the surface of the wiring board 1 and the terminal electrodes 4.4 of the liquid crystal display panel 3 by means of the anisotropic conductive adhesive 5 is performed on one side of the wiring board 1 and the liquid crystal display panel 3, for example, on the wiring board 1. An anisotropic conductive adhesive 5 is applied onto the electrode forming surface of the electrode 4. This is done by stacking the wiring board 1 and the electrodes 2 and 2 facing each other and applying heat and pressure. When heated and pressurized with the adhesive 5 interposed, both electrodes 2.4 are electrically connected via the conductive particles 7. Glued.
ところで、上記のように配線基板1面の電極2゜2と液
晶表示パネル3の端子電極4,4を異方導電性接着剤5
によって接続する場合、液晶表示パネル3の端子電極4
.4は一般に表示用電極と同じITO<インジウム・ス
ズ酸化物)からなる透明電極(以下ITO電極という)
とされており、また配線基板1面の電極2,2は電極全
体をカーボンで形成するかあるいは金属電極上に酸化防
止のためのカーボン層を形成したカーボン電極とされて
いるために、配II板1と液晶表示パネル3との電極2
.4を十分な導通を確保して確実に接続するには、異方
導電性接着剤5中の導電性粒子7を、配線基板1面のカ
ーボン電極2に対してもまた液晶表示パネル3のITO
11極4に対しても小さな接触抵抗で導通接触させる必
要がある。By the way, as mentioned above, the electrodes 2.2 on the wiring board 1 and the terminal electrodes 4, 4 on the liquid crystal display panel 3 are bonded with an anisotropic conductive adhesive 5.
When connecting with the terminal electrode 4 of the liquid crystal display panel 3
.. 4 is a transparent electrode (hereinafter referred to as ITO electrode) generally made of ITO < indium tin oxide, which is the same as the display electrode.
In addition, since the electrodes 2, 2 on one side of the wiring board are made entirely of carbon, or are carbon electrodes with a carbon layer formed on a metal electrode to prevent oxidation, Electrode 2 between plate 1 and liquid crystal display panel 3
.. 4, in order to ensure sufficient conductivity and connect the conductive particles 7 in the anisotropic conductive adhesive 5 to the carbon electrode 2 on the wiring board 1, as well as the ITO on the liquid crystal display panel 3.
It is also necessary to make conductive contact with the 11 pole 4 with small contact resistance.
しかしながら従来は、配線基板と液晶表示パネルと配線
基板面の電極の接続にも、導電性粒子として導電性金属
粒子を用いた異方導電性接着剤か、あるいは導電性粒子
としてカーボン粒子を用いた異方導電性接着剤を使用し
ていたために、前記カーボン電極2とITO電極4との
うちいずれか一方の電極と導電性粒子7との接触抵抗は
小さいが、他方の電極と導電性粒子7との接触抵抗が大
きくて、配線基板1と液晶表示パネル3との電極2゜4
を確実に導通接続することができなかった。However, in the past, anisotropic conductive adhesives using conductive metal particles or carbon particles were used to connect the wiring board, the liquid crystal display panel, and the electrodes on the wiring board surface. Since the anisotropic conductive adhesive was used, the contact resistance between either the carbon electrode 2 or the ITO electrode 4 and the conductive particles 7 was small, but the contact resistance between the other electrode and the conductive particles 7 was small. Since the contact resistance between the wiring board 1 and the liquid crystal display panel 3 is large, the contact resistance between the wiring board 1 and the liquid crystal display panel 3 is
It was not possible to make a reliable continuity connection.
すなわち、導電性粒子7,7・・・としてニッケル等の
導電性金属粒子を混入した従来の異方導電性接着剤によ
って配線基板1面のカーボン電極2゜2と液晶表示パネ
ル3のITO電極4.4とを接続した場合、金属粒子は
、ITO電極4に対してはその表面の酸化膜を突破って
確実に導通接触するが、カーボン電極2に対しては、接
続初期には十分な導通がとれているけれども時間の経過
とともに湿度の影響で徐々にバウンドして接触抵抗が大
きくなってしまうから、上記導電性金属粒子を混入した
異方導電性接着剤では、カーボン電極2とITO電極4
とを十分な導通を確保して接続することはできなかった
。また、導電性粒子7.7・・・とじてカーボン粒子を
混入した従来の異方導電性接着剤によってカーボン電極
2とITOI極4とを接続した場合は、カーボン粒子と
カーボン電極2との導通は良好である(これは、カーボ
ン粒子がカーボン電極と融着するためと考えられている
)が、カーボン粒子ではITO電極4の酸化膜は突破れ
ないためにITO電極4に対してはその表面の酸化膜に
カーボン粒子が接触するだけであるから、カーボン粒子
とITO電極4との接触抵抗は大きく、そのために、上
記カーボン粒子を混入した異方導電性接着剤でも、カー
ボン電極2とITO電極4とを十分な導通を確保して接
続することはできなかった。That is, the carbon electrode 2°2 on the wiring board 1 and the ITO electrode 4 on the liquid crystal display panel 3 are bonded using a conventional anisotropic conductive adhesive mixed with conductive metal particles such as nickel as the conductive particles 7, 7... .4, the metal particles break through the oxide film on the surface of the ITO electrode 4 to ensure conductive contact, but the metal particles do not have sufficient conductivity to the carbon electrode 2 at the initial stage of connection. However, as time passes, the contact resistance gradually increases due to the influence of humidity as the anisotropic conductive adhesive containing conductive metal particles is mixed with the carbon electrode 2 and the ITO electrode 4.
It was not possible to connect the two with sufficient continuity. In addition, when the carbon electrode 2 and the ITOI electrode 4 are connected using a conventional anisotropic conductive adhesive in which conductive particles 7.7... are mixed with carbon particles, the conduction between the carbon particles and the carbon electrode 2 is is good (this is thought to be because the carbon particles fuse with the carbon electrode), but since the carbon particles cannot break through the oxide film of the ITO electrode 4, the surface The contact resistance between the carbon particles and the ITO electrode 4 is large because the carbon particles only come into contact with the oxide film of 4 could not be connected with sufficient continuity.
(発明の目的〕
この発明は上記のような実情にかんがみてなされたもの
であって、その目的とするところは、カーボン電極とI
TO電極とを十分な導通を確保して確実に接続すること
ができる異方導電性接着剤を提供することにある。(Object of the invention) This invention has been made in view of the above-mentioned circumstances, and its purpose is to improve carbon electrodes and I
It is an object of the present invention to provide an anisotropically conductive adhesive that can secure sufficient conduction and reliably connect to a TO electrode.
すなわち、この発明の異方導電性接着剤は、絶縁性接着
剤中に、導電性金属粒子とカーボン粒子とを混入したも
のであり、この異方導電性接着剤によってカーボン電極
とITO電極とを接続すれば、カーボン電極と■TO電
極との間に、ITO電極の酸化膜を突破ってこのITO
電極と確実に導通接触する金属粒子と、カーボン電極に
対して確実に導通接触するカーボン粒子とが介在される
し、またこの粒子のなかには金属粒子とカーボン粒子と
が互いに接触し合っているものも高い比率で存在するた
めに、カーボン電極とITO電極とがその少なくとも一
部において互いに接触している金属粒子とカーボン粒子
とを介して接続されるから、カーボン電極とITO電極
とを十分な導通を確保して確実に接続することができる
。That is, the anisotropic conductive adhesive of the present invention is an insulating adhesive mixed with conductive metal particles and carbon particles, and the anisotropic conductive adhesive connects a carbon electrode and an ITO electrode. When connected, this ITO will break through the oxide film of the ITO electrode between the carbon electrode and the TO electrode.
Metal particles that are in reliable conductive contact with the electrode and carbon particles that are in reliable conductive contact with the carbon electrode are interposed, and some of these particles have metal particles and carbon particles that are in contact with each other. Since the carbon electrode and the ITO electrode are present at a high ratio, the carbon electrode and the ITO electrode are connected through the metal particles and carbon particles that are in contact with each other at least in part, so that sufficient conduction can be achieved between the carbon electrode and the ITO electrode. can be secured and connected reliably.
以下、この発明の一実施例を第1図を参照して説明する
。An embodiment of the present invention will be described below with reference to FIG.
第1図は、配線基板1面の表示パネル接続電極2.2と
液晶表示パネル3の端子電揄4.4とをこの発明の異方
導電性接着剤10によって接続した状態を示している。FIG. 1 shows a state in which the display panel connection electrode 2.2 on one side of the wiring board and the terminal electrode 4.4 of the liquid crystal display panel 3 are connected by the anisotropic conductive adhesive 10 of the present invention.
前記配線基板1は、例えばポリエステルフィルムからな
るフィルム基板に配II(図示せず)を形成したもので
、前記表示パネル接続電極2,2はカーボン電極とされ
ており、また前記液晶表示パネル3の端子電極4,4は
ITO電極とされている。The wiring board 1 has a wiring board II (not shown) formed on a film board made of, for example, a polyester film, and the display panel connection electrodes 2, 2 are carbon electrodes. The terminal electrodes 4, 4 are ITO electrodes.
前記異方導電性接着剤10は、ホットメルト型の絶縁性
接着剤11中に多数の導電性金属粒子12.12・・・
とカーボン粒子13.13・・・とを混入したもので、
前記ホットメルト型の絶縁性接着剤11は、合成ゴムに
熱可塑性高分子材料または熱硬化性高分子材料のいずれ
かを混入したものか、あるいは、合成ゴムに熱可塑性高
分子材料と熱硬化性高分子材料とを混入したものとされ
ている。The anisotropic conductive adhesive 10 includes a large number of conductive metal particles 12, 12...
and carbon particles 13.13...
The hot melt type insulating adhesive 11 is made of synthetic rubber mixed with either a thermoplastic polymer material or a thermosetting polymer material, or a synthetic rubber mixed with a thermoplastic polymer material and a thermosetting polymer material. It is said to have been mixed with a polymeric material.
また、前記金属粒子12は、硬質の金属例えばニッケル
からなっており、この金属粒子12.12・・・とカー
ボン粒子13.13・・・とは、いずれも直径が約20
〜40μ麿のものとされている。そして、この金属粒子
12.12・・・とカーボン粒子13.13・・・とは
、前記絶縁性接着剤11中にほぼ同数ずつ、粒子同志が
連続的に接触し合わないような密度でほぼ均一に分布す
るように混入されている。すなわち、この金属粒子12
.12・・・とカーボン粒子13.13・・・は、単位
面積当りにほぼ同数ずつが大体において交互に並んで分
布するように混入されており、また、この粒子のなかに
は、金属粒子12とカーボン粒子13とが互いに接触し
合っているものも高い比率で存在している。Further, the metal particles 12 are made of a hard metal such as nickel, and the metal particles 12.12... and the carbon particles 13.13... each have a diameter of approximately 20 mm.
It is said to be ~40 μm thick. The metal particles 12.12... and the carbon particles 13.13... are placed in approximately the same number in the insulating adhesive 11 at a density such that the particles do not come into continuous contact with each other. The mixture is evenly distributed. That is, this metal particle 12
.. 12... and carbon particles 13.13... are mixed so that they are distributed in approximately the same number per unit area, and are generally arranged alternately, and among these particles, metal particles 12 and carbon particles A high proportion of particles 13 are in contact with each other.
この異方導電性接着剤5による配線基板1と液晶表示パ
ネル3との電極2.4の接続は、従来の異方導電性接着
剤による接続と同様に、配線基板1と液晶表示パネル3
との一方例えば配線基板1の電極形成面上に異方導電性
接着剤10を塗布するか、またはあらかじめシートに形
成しておいた異方導電性接着剤1oを重ね、その上に液
晶表示パネル3をその電極4,4が配線基板1の電極2
゜2と対向するように億ねて加熱加圧することによって
行なわれる。The connection of the electrodes 2.4 between the wiring board 1 and the liquid crystal display panel 3 using the anisotropic conductive adhesive 5 is similar to the connection using the conventional anisotropic conductive adhesive.
On the other hand, for example, an anisotropically conductive adhesive 10 is applied on the electrode forming surface of the wiring board 1, or an anisotropically conductive adhesive 1o formed in advance into a sheet is overlaid, and a liquid crystal display panel is placed on top of the anisotropically conductive adhesive 10. 3 and its electrode 4, 4 is the electrode 2 of the wiring board 1
This is done by heating and pressurizing the parts so that they are facing each other.
しかして、上記のように絶縁性接着剤11中に導電性金
属粒子12.12・・・とカーボン粒子13゜13・・
・とを混入した異方導電性接着剤10によって配線基板
1面のカーボン電極2,2と液晶表示パネル3のITO
電?4!4.4とを接続すると、カーボン電tft2と
ITO電極4との間に、ITO電極4の酸化膜を突破っ
てこのITO電楊4と確実に導通接触する金属粒子12
と、カーボン電極2に対して確実に導通接触するカーボ
ン粒子13とが介在されるし、またこの粒子のなかには
、上記のように金属粒子12とカーボン粒子13とが互
いに接触し合っているものも高い比率で存在するために
、カーボン電極2とITOI極4とはその少なくとも一
部において、互いに接触している金属粒子12とカーボ
ン粒子13とを介して接続されることになる。そして、
この場合、互いに接触している金属粒子12とカーボン
粒子13とは、その周囲の絶縁性接着剤11によって常
に密着状態に保持されるために、この接触している金属
粒子12とカーボン粒子13とは湿度の影響によってバ
ウンドすることなく良好な導通性を保つし、また金属粒
子12はITO電極4に確実に導通接触し、カーボン粒
子13はカーボン電極2に確実に導通接触するから、カ
ーボン電極2と金属粒子12およびITO電極4とカー
ボン粒子13との導通性が悪くても、カーボン電極2と
ITO電極4は、互いに接触している金属粒子12とカ
ーボン粒子13とを介して十分な導通をもって確実に接
続される。Therefore, as mentioned above, conductive metal particles 12,12... and carbon particles 13,13...
・The carbon electrodes 2, 2 on one side of the wiring board and the ITO on the liquid crystal display panel 3 are bonded by the anisotropic conductive adhesive 10 mixed with
Electric? 4! When 4.4 is connected, metal particles 12 are formed between the carbon electrode TFT2 and the ITO electrode 4 to break through the oxide film of the ITO electrode 4 and make reliable conductive contact with the ITO electrode 4.
and carbon particles 13 that are in reliable conductive contact with the carbon electrode 2, and some of these particles have the metal particles 12 and carbon particles 13 in contact with each other as described above. Since the carbon electrode 2 and the ITO I electrode 4 are present at a high ratio, at least a portion thereof is connected through the metal particles 12 and the carbon particles 13 that are in contact with each other. and,
In this case, the metal particles 12 and carbon particles 13 that are in contact with each other are always kept in close contact with each other by the insulating adhesive 11 around them. maintains good conductivity without bouncing due to the influence of humidity, and since the metal particles 12 are in reliable conductive contact with the ITO electrode 4 and the carbon particles 13 are in reliable conductive contact with the carbon electrode 2, the carbon electrode 2 Even if the conductivity between the metal particles 12 and the ITO electrode 4 and the carbon particles 13 is poor, the carbon electrode 2 and the ITO electrode 4 have sufficient conduction through the metal particles 12 and carbon particles 13 that are in contact with each other. Connected securely.
なお、上記実施例では、配線基板1面のカーボン電極2
.2を、電極全体をカーボンで形成したものとして図示
しているが、このカーボン電極2゜2は金属電極の上に
カーボン層を形成したものであってもよい。また上記実
施例では、配線基板1面のカーボン電極2.2と液晶表
示パネル3のITO電極4,4との接続について説明し
たが、この発明の異方導電性接着剤は、例えばフレキシ
ブルコネクタのカーボン電極と液晶表示パネルのITO
電極との接続や、配線基板面のカーボン電極と太陽電池
のITO電極(表面側透明電極)との接続等にも広く使
用できるものである。In addition, in the above embodiment, the carbon electrode 2 on one side of the wiring board
.. 2 is illustrated as having an electrode entirely made of carbon, but this carbon electrode 2.2 may also be one in which a carbon layer is formed on a metal electrode. Further, in the above embodiment, the connection between the carbon electrodes 2.2 on the wiring board 1 and the ITO electrodes 4, 4 on the liquid crystal display panel 3 has been described, but the anisotropic conductive adhesive of the present invention can be used, for example, in flexible connectors. Carbon electrodes and ITO for liquid crystal display panels
It can also be widely used for connection with electrodes, and connection between carbon electrodes on the surface of wiring boards and ITO electrodes (transparent electrodes on the front side) of solar cells.
この発明の異方導電性接着剤は、絶縁性接着剤中に、導
電性金属粒子とカーボン粒子とを混入したものであるか
ら、この異方導電性接着剤によってカーボン電極とIT
O電極とを接続すれば、カーボン電極とITO電極とを
十分な導通を確保して確実に接続することができる。The anisotropic conductive adhesive of the present invention is an insulating adhesive mixed with conductive metal particles and carbon particles.
By connecting the O electrode, sufficient conduction can be ensured between the carbon electrode and the ITO electrode, and the connection can be ensured.
第1図はこの発明の異方導電性接着剤によって配線基板
面のカーボン電極と液晶表示パネルのITO電極とを接
続した状態の断面図、第2図は従来の異方導電性接着剤
によって配線基板面のカーボン電極と液晶表示パネルの
ITO電極とを接続した状態の断面図である。
1・・・配線基板、2・・・カーボン電極、3・・・液
晶表示パネル、4・・・ITOI!極、10・・・異方
導電性接着剤、11・・・絶縁性接着剤、12・・・導
電性金属粒子、13・・・カーボン粒子。Figure 1 is a cross-sectional view of a state in which a carbon electrode on a wiring board and an ITO electrode of a liquid crystal display panel are connected using the anisotropically conductive adhesive of the present invention, and Figure 2 is a cross-sectional view of a state in which a carbon electrode on a wiring board and an ITO electrode of a liquid crystal display panel are connected using the anisotropically conductive adhesive of the present invention. FIG. 2 is a cross-sectional view of a state in which a carbon electrode on a substrate surface and an ITO electrode of a liquid crystal display panel are connected. 1... Wiring board, 2... Carbon electrode, 3... Liquid crystal display panel, 4... ITOI! Pole, 10... Anisotropic conductive adhesive, 11... Insulating adhesive, 12... Conductive metal particles, 13... Carbon particles.
Claims (1)
混入したことを特徴とする異方導電性接着剤。An anisotropic conductive adhesive characterized in that conductive metal particles and carbon particles are mixed into an insulating adhesive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22057585A JPS6279281A (en) | 1985-10-03 | 1985-10-03 | Anisotropic electrically conductive adhesive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22057585A JPS6279281A (en) | 1985-10-03 | 1985-10-03 | Anisotropic electrically conductive adhesive |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6279281A true JPS6279281A (en) | 1987-04-11 |
Family
ID=16753132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22057585A Pending JPS6279281A (en) | 1985-10-03 | 1985-10-03 | Anisotropic electrically conductive adhesive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6279281A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63301407A (en) * | 1987-05-29 | 1988-12-08 | Hitachi Chem Co Ltd | Connecting material for circuit |
JPH0291360U (en) * | 1988-12-29 | 1990-07-19 | ||
US6920014B2 (en) | 2001-12-28 | 2005-07-19 | Alps Electronic Co., Ltd. | Magnetic head comprising slider and flexure bonded with conductive resin |
-
1985
- 1985-10-03 JP JP22057585A patent/JPS6279281A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63301407A (en) * | 1987-05-29 | 1988-12-08 | Hitachi Chem Co Ltd | Connecting material for circuit |
JPH0291360U (en) * | 1988-12-29 | 1990-07-19 | ||
US6920014B2 (en) | 2001-12-28 | 2005-07-19 | Alps Electronic Co., Ltd. | Magnetic head comprising slider and flexure bonded with conductive resin |
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