JP2008248044A5

JP2008248044A5 -

Info

Publication number: JP2008248044A5
Application number: JP2007090000A
Authority: JP
Filing date: 2007-03-30
Publication date: 2010-03-25

Description

本発明の請求項１に記載の異方性導電接着材は、熱硬化性樹脂材料からなるバインダ樹脂層と、前記バインダ樹脂層中に分散保持された複数の導電性粒子と、前記バインダ樹脂層が軟化して流動性を示す温度に加熱されつつ加圧されることによる前記バインダ樹脂層の流動に伴う前記導電性粒子の移動を規制する粒子移動規制部材と、を有し、前記粒子移動規制部材は、前記バインダ樹脂層の前記熱硬化性樹脂材料が軟化して流動性を示す温度より高い温度で、且つ前記熱硬化性樹脂材料の硬化温度よりも低い温度の融点を有する材料で形成されることを特徴とするものである。 Anisotropic conductive adhesive according to claim 1 of the present invention, the binder resin layer made of a thermosetting resin material, a plurality of conductive particles dispersed retained in the binder resin layer, before Symbol binder resin A particle movement regulating member that regulates the movement of the conductive particles accompanying the flow of the binder resin layer by being pressurized while being heated to a temperature at which the layer softens and exhibits fluidity, and the particle movement The regulating member is formed of a material having a melting point that is higher than a temperature at which the thermosetting resin material of the binder resin layer softens and exhibits fluidity and lower than a curing temperature of the thermosetting resin material. It is characterized by that.

Claims

A binder resin layer made of a thermosetting resin material;
A plurality of conductive particles dispersed and held in the binder resin layer;
And particle movement restricting member for restricting the movement of the conductive particles with the flow of the binder resin layer due to the previous SL binder resin layer is pressurized while being heated to a temperature showing a fluidity softens,
Have
The particle movement regulating member has a melting point that is higher than a temperature at which the thermosetting resin material of the binder resin layer softens and exhibits fluidity and lower than a curing temperature of the thermosetting resin material. anisotropic conductive adhesive, characterized in that it is formed of a material.

2. The anisotropic conductive adhesive according to claim 1, wherein the particle movement regulating member is a mesh cloth material formed by knitting yarn made of a thermoplastic resin material and included in the binder resin layer. .

The particle movement restricting member is arranged to overlap with one surface of the binder resin layer holding the conductive particles, and a plurality of protrusions having a triangular cross section in parallel with the surface in contact with the binder resin layer are arranged in parallel. The anisotropic conductive adhesive according to claim 1, wherein the anisotropic conductive adhesive is a braking layer formed on the uneven surface.

The particle movement regulating member is a braking layer that is superimposed on one surface of a binder resin layer that holds the conductive particles, and a plurality of holes are formed in a predetermined arrangement in the thickness direction. The anisotropic conductive adhesive according to claim 1.