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:
Sep. 01, 2020

Filed:

Mar. 08, 2017
Applicant:

Toyo Ink SC Holdings Co., Ltd., Tokyo, JP;

Inventors:

Toshiichi Sawaguchi, Tokyo, JP;

Gaku Kashiwamura, Tokyo, JP;

Go Miyazawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/20 (2006.01); C01B 21/064 (2006.01); H01L 23/373 (2006.01); H05K 7/20 (2006.01); H01L 23/36 (2006.01); B32B 27/18 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B32B 27/18 (2013.01); C01B 21/064 (2013.01); H01L 23/36 (2013.01); H01L 23/373 (2013.01); H05K 7/20 (2013.01); B32B 27/36 (2013.01);
Abstract

The purpose of the present invention is to provide a thermal conductive insulating sheet which has achieved a good balance between insulating properties and thermal conductivity higher than ever before. A thermal conductive insulating sheet according to the present invention contains a thermal conductive spherical filler (excluding boron nitride), a boron nitride filler and a binder resin, and has a plurality of layers (A) that mainly contain the thermal conductive spherical filler (excluding boron nitride) and one or more layers (B) that mainly contain the boron nitride filler, with the layers (A) and the layers (B) being alternately laminated so that layers (A) form the outermost layers.


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