The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 17, 2020

Filed:

Jun. 25, 2019
Applicant:

Dexerials Corporation, Tokyo, JP;

Inventor:

Tomoyuki Ishimatsu, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); B32B 37/18 (2006.01); B32B 27/20 (2006.01); B32B 3/30 (2006.01); H01L 23/00 (2006.01); B32B 37/00 (2006.01); B32B 37/24 (2006.01); H05K 3/32 (2006.01); B32B 37/12 (2006.01);
U.S. Cl.
CPC ...
B32B 37/185 (2013.01); B32B 3/30 (2013.01); B32B 27/20 (2013.01); B32B 37/025 (2013.01); B32B 37/24 (2013.01); H01L 24/27 (2013.01); H01L 24/29 (2013.01); H01L 24/32 (2013.01); B32B 37/1207 (2013.01); B32B 2037/1253 (2013.01); B32B 2307/202 (2013.01); B32B 2310/0831 (2013.01); B32B 2457/00 (2013.01); H01L 2224/16238 (2013.01); H01L 2224/2711 (2013.01); H01L 2224/2929 (2013.01); H01L 2224/2939 (2013.01); H01L 2224/29082 (2013.01); H01L 2224/29444 (2013.01); H01L 2224/29499 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/81193 (2013.01); H05K 3/323 (2013.01); H05K 2201/10106 (2013.01); H05K 2201/10674 (2013.01); Y10T 428/24562 (2015.01);
Abstract

The present invention is to provide an anisotropic conductive film that excels in dispersing conductive particles and trapping the particles, and maintains conduction reliability even between narrow-pitched terminals. By a method for manufacturing an anisotropic conductive film containing conductive particles, the conductive particles are buried in grooves in a sheet having the grooves regularly formed in the same direction, the conductive particles are arranged, a first resin film having a thermo-setting resin layer formed on a stretchable base film is laminated on the surface of the sheet on the side of the grooves to transfer and attach the conductive particles to the first resin film, the first resin film is uniaxially stretched in a direction other than the direction perpendicular to the array direction of the conductive particles, and a second resin film is laminated.


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