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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.

Patent No.:

US 10121724 B1

PDFFull Text
Date of Patent:
Nov. 06, 2018

Filed:

Feb. 17, 2015

Heat diffusion sheet

Applicant:

Dexerials Corporation, Tokyo, JP;

Inventors:

Minoru Nagashima, Utsunomiya, JP;

Teruo Hiyama, Utsunomiya, JP;

Assignee:

DEXERIALS CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

David Sample

Assistant Examiner:

Nicole T Gugliotta

Int. Cl.
CPC ...
H01L 23/373 (2006.01); B32B 7/00 (2006.01); B32B 9/00 (2006.01); B32B 27/36 (2006.01); B32B 7/12 (2006.01); B32B 9/04 (2006.01); F28F 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 23/3735 (2013.01); B32B 7/12 (2013.01); B32B 9/007 (2013.01); B32B 9/045 (2013.01); B32B 27/36 (2013.01); F28F 21/02 (2013.01); H01L 23/373 (2013.01); H01L 23/3737 (2013.01); B32B 2250/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/302 (2013.01); B32B 2307/50 (2013.01); B32B 2307/732 (2013.01); B32B 2307/748 (2013.01); B32B 2313/04 (2013.01); B32B 2367/00 (2013.01); B32B 2405/00 (2013.01); B32B 2457/14 (2013.01); B32B 2457/206 (2013.01); H01L 2924/0002 (2013.01);
Abstract

A heat diffusion sheethas a configuration in which a composite adhesive film is formed on a surface of a graphite sheethaving a thickness of 300 μm or more and 2,000 μm or less. This composite adhesive film has a configuration in which (A) an acrylic adhesive layer that has a thickness of 5 μm or more and 15 μm or less and does not contain a thermally conductive material, (B) a polyester film having a thickness of 20 μm or more and 60 μm or less, and (C) a silicone adhesive layer that has a thickness of 2 μm or more and 25 μm or less, does not contain a thermally conductive material, and has a peel strength of 0.005 N/cm or more and 1.0 N/cm or less are sequentially layered on the graphite sheet

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