Isotropic conductive adhesive and adhesive film using the same

一种各向异性、导电性的技术，应用在导电性粘接剂领域，能够解决电极间隔缩小、易发生剥离、短路等问题，达到防止短路现象、长期可靠性优异的效果

Inactive Publication Date: 2005-12-28
H&S HIGHTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even in this case, due to excessive shrinkage due to the polymerization reaction, after curing, internal stress accumulates in the connection part, and peeling tends to occur; short circuit problem

Method used

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  • Isotropic conductive adhesive and adhesive film using the same
  • Isotropic conductive adhesive and adhesive film using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 50 grams of phenoxy resin (Inchem Inc., trade name PKHC, average molecular weight 45000) was dissolved in toluene (boiling point 110.6°C, SP value 8.90) / acetone (boiling point 56.1°C, SP value 10.0) at a weight ratio of 50 / 50 In the mixed solvent, a solution with a solid content of 40% was obtained. Next, add radical polymerizable resin, 25 grams of ethylene glycol modified bisphenol A diacrylate (Donga Synthesis Co., trade name M-210); polymerization initiator, 5 grams of tert-hexylperoxy-2-ethyl Caproic acid ester (Nipponushi Inc., trade name パ一キュア HO); cross-linkable rubber resin, 7 grams of EPDM (Kumhopolychem Co., trade name Vistalon 503K) with a Mooney viscosity of ML1+4@100°C: 34 At this time, in an amount of 3% by volume of the adhesive component, conductive particles composed of metal-coated resin particles (Jeoksoo Chemical Co., trade name Micropearl AU205, 5.0 μm) were added thereto, and then dispersed uniformly , Preparation of anisotropic conductive adhesive. A...

Embodiment 2

[0038] Except that the added crosslinkable rubber resin is 7 grams of EPDM (Kumhopolychem Co., trade name KEP-330, Mooney viscosity is ML1+4@125°C: 28), the same method as in Example 1 is used to produce Anisotropic conductive adhesive film.

Embodiment 3

[0040] Except that the added crosslinkable rubber resin is 7 grams of butyl rubber resin (InterService, trade name BK-1675N, Mooney viscosity is ML1+8@125°C: 47-54), the same as in Example 1 is adopted. The method to produce anisotropic conductive adhesive film.

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Abstract

The present invention provides an anisotropic conductive adhesive comprising an insulating adhesive component and a large number of conductive particles dispersed in the insulating adhesive component, wherein the insulating adhesive component contains alternating Linked rubber resin. When connecting circuits, by minimizing the thermal shrinkage of the anisotropic conductive adhesive in the polymerization reaction or curing reaction, it is possible to prevent peeling of the adhesive or a decrease in the bonding strength of the circuit. It prevents short-circuit between adjacent electrodes and is excellent in long-term reliability.

Description

Technical field [0001] The present invention relates to an anisotropic conductive adhesive and a film (ACF) using the adhesive. In more detail, it relates to an anisotropic conductive adhesive and a film (ACF) to which the adhesive is applied, characterized in that a crosslinkable rubber resin is contained in an insulating adhesive component. Background technique [0002] An anisotropic conductive adhesive is a circuit connection material. It has conductive particles dispersed in an insulating adhesive component to mechanically connect opposing circuits. At the same time, due to the presence of conductive particles, the circuit electrodes Make an electrical connection. As the insulating adhesive component, thermoplastic resins, thermosetting resins, etc. can be used, but in terms of connection reliability, thermosetting resins are mainly used. [0003] When thermosetting resin is used as the bonding component, an anisotropic conductive adhesive is present between the members to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08G2/00C08L21/00C08L23/16C08L33/20C08L35/06C09J9/02C09J121/00C09J123/00C09J133/08C09J135/06C09J151/00C09J151/04C09J151/06C09J155/02H05K3/32
CPCC08F283/00C08K2201/001C08L21/00C08L23/16C08L33/20C08L35/06C08L2205/22C09J9/02C09J121/00C09J133/08C09J135/06C09J151/003C09J151/04C09J151/06C09J155/02H05K3/323H05K2201/0133C08L2666/02C08L2666/24
Inventor 田暎美郑润载张钟允安佑永韩用锡
Owner H&S HIGHTECH
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