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Anisotropic conductive film

An anisotropic, conductive film technology, used in conductive connections, circuits, electrical components, etc., can solve problems such as easy movement of conductive particles, inability to maintain precise configuration of conductive particles, and inability to sufficiently separate conductive particles.

Active Publication Date: 2020-03-31
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the anisotropic conductive film described in Patent Document 1, there is a problem that conductive particles tend to move during temporary crimping of the anisotropic conductive connection, and the anisotropic conductive connection cannot be maintained after the anisotropic conductive connection. The precise arrangement of the previous conductive particles, or the distance between the conductive particles cannot be sufficiently separated

Method used

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Examples

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Embodiment Construction

[0054] An example of the anisotropic conductive film of the present invention will be described in detail below with reference to the drawings. In addition, in each figure, the same code|symbol represents the same or equivalent component.

[0055]

[0056] Figure 1A It is a plan view illustrating the arrangement of particles of an anisotropic conductive film 10A according to an example of the present invention, Figure 1B is its X-X cross-sectional view.

[0057] This anisotropic conductive film 10A may be, for example, a long film form having a length of 5 m or more, or may be a package wound around a core.

[0058] 10 A of anisotropic conductive films are comprised with the conductive particle dispersion layer 3, and in the conductive particle dispersion layer 3, the conductive particle 1 is dispersed regularly on the one surface of the photopolymerizable insulating resin layer 2 in the exposed state. The conductive particles 1 do not contact each other in the plan vie...

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Abstract

The invention relates to an anisotropic conductive film for restraining the flow of conductive particles by an insulating resin layer flowing, improving conductive particles capturing performance, reducing a short circuit, has a conductive particle dispersion layer in which the conductive particles disperse in an insulating resin layer. This insulating resin layer is a layer composed of a photopolymerizable resin composition. A surface of the insulating resin layer near the conductive particles has an inclination or an undulation with regard to a tangential plane of the insulating resin layerin a central portion between the conductive particles adjacent to each other.

Description

technical field [0001] The present invention relates to anisotropic conductive films. Background technique [0002] An anisotropic conductive film in which conductive particles are dispersed in an insulating resin layer is widely used for mounting electronic components such as IC chips. In the anisotropic conductive film, conductive particles are dispersed at high density in the insulating resin layer, so that high mounting density can be handled. However, increasing the number density of conductive particles causes short circuits to occur. [0003] In response to this, in order to reduce short circuits and improve workability when the anisotropic conductive film is temporarily pressure-bonded to the substrate, it has been proposed to combine a photopolymerizable resin layer embedded with conductive particles in a single layer and an insulating adhesive. layer-laminated anisotropic conductive film (Patent Document 1). As a method of using the anisotropic conductive film, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R11/01H01R43/00H01R43/02
CPCC08J5/18C08J2333/06B32B38/0008H01L2224/32225H01L2224/29082H01L2224/29499H01L2224/2929H01L2224/83203H01L2224/75315H01L2224/75261H01L2224/83201H01L2224/83224H01L24/29H01L24/83B32B2270/00B32B27/308B32B2307/706B32B27/24B32B2307/202B32B2457/00B32B27/365B32B7/02B32B2307/732B32B27/286B32B27/302B32B2307/206B32B27/42B32B2264/0214B32B27/322B32B2264/105B32B27/08B32B27/20H01L2224/29364H01L2224/29339H01L2224/29357H01L2224/29386H01L2224/294H01L2224/29347H01L2224/29344H01L2224/293H01L2224/29355H01L2924/00014H01L2924/014H01L2924/013H01L2924/0615H01L2924/068H01L2924/05442H01L2924/0685H01R11/01H01R43/02H01B5/16B32B3/263B32B3/30B32B5/16B32B7/12B32B27/18B32B27/38B32B2260/04B32B2310/08B32B2457/04
Inventor 梶谷太一郎塚尾怜司
Owner DEXERIALS CORP
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