Aeolotropism conductive sheet, its mfg. process and products using same

An anisotropic, thin plate technology, applied in the field of anisotropic conductive thin plates, can solve problems such as shortening the service life and failing to maintain electrical conductivity

Inactive Publication Date: 2002-05-15
ISC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the required conductivity cannot be maintained, further shortening the service life

Method used

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  • Aeolotropism conductive sheet, its mfg. process and products using same
  • Aeolotropism conductive sheet, its mfg. process and products using same
  • Aeolotropism conductive sheet, its mfg. process and products using same

Examples

Experimental program
Comparison scheme
Effect test

reference example 1

[0196] In addition to replacing silicone grease "FG721" with silicone oil "KF96L" (manufactured by Shin-Etsu Chemical Industry Co., Ltd.) with a kinematic viscosity of 2cst at 25°C, and using a lubricant in an amount of 2.5 parts per 100 parts of conductive particles. An anisotropic conductive sheet equipped with a holder was produced in the same manner as in Example 1 except for coating the surface of the conductive particles. The sizes of the conductive path forming member and the insulating member in the obtained anisotropic conductive sheet were the same as those of the anisotropic conductive sheet in Example 1. The proportion of the conductive particles in the conductive path forming member was 30% by volume.

reference example 2

[0198] A holder-equipped anisotropic conductive sheet was produced in the same manner as in Example 1, except that the surface of the conductive particles was coated with a lubricant in an amount of 20 parts by mass per 100 parts by mass of the conductive particles. The sizes of the conductive path forming member and the insulating member in the obtained anisotropic conductive sheet were the same as those of the anisotropic conductive sheet in Example 1. The proportion of the conductive particles in the conductive path forming member was 30% by volume.

[0199] [Evaluation of Anisotropic Conductive Sheet]

[0200] For the anisotropic conductive sheets according to Examples 1 to 4, Comparative Examples 1 and 2, and Reference Examples 1 and 2, repeated use durability and heat resistance were evaluated in the following manner.

[0201] (1) Repeated use durability:

[0202] The first and second circuit boards are provided for evaluation. The first circuit board used for evaluat...

reference example 3

[0237] An adapter for circuit device testing was manufactured in the same manner as in Example 5, except that a lubricant was used to coat the surface of the conductive particles in an amount of 20 parts by mass per 100 parts by mass of the conductive particles. The dimensions of the conductive path forming member and the insulating member resulting in the anisotropic conductive sheet in the adapter for circuit device inspection were the same as those in the adapter for circuit device inspection according to Example 5. The proportion of the conductive particles in the conductive path forming member was 30% by volume.

[0238] [Evaluation of adapters for circuit device testing]

[0239] The adapters for testing circuit devices according to Example 5, Comparative Examples 3-5 and Reference Example 3 were respectively used to manufacture the testing device with the structure shown in FIG. 14 .

[0240] On the other hand, a circuit board to be inspected having 512 electrodes to b...

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Abstract

Disclosed is an anisotropically conductive sheet which can retain required conductivity over a long time even when used repeatedly, or used under a high-temperature environment, and has a long service life owing to its high durability and thermal durability, a production process thereof, and applied products thereof. The anisotropically conductive sheet contains conductive particles exhibiting magnetism in a state. oriented in a thickness-wise direction in an elastic polymeric substance having durometer hardness of 20 to 90, and a lubricant or parting agent is coated on the particles.

Description

field of invention [0001] The present invention relates to an anisotropic conductive sheet suitable for, for example, electrical connection between circuit devices such as electronic parts, or as an electrical connection for circuit devices such as printed circuit boards, a method for manufacturing the same, and products for use thereof. Test the connectors in the unit. Background technique [0002] The anisotropic conductive sheet is a sheet that exhibits conductivity only in the thickness direction, or has a pressure-sensitive conductor member that exhibits conductivity only in the thickness direction when pressure is applied in the thickness direction. Since the anisotropic conductive sheet has the following characteristics: compact electrical connection can be realized without any measures such as welding or mechanical assembly, and soft connection can be realized by using mechanical shock or strain absorbed in it, so it can be widely used as a connector , used to reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/16H01R13/24H01R43/00
CPCH01R43/007H01R13/2414Y10T29/49222H01B5/16
Inventor 木村洁下田杉郎安田直史山田大典
Owner ISC CO LTD
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