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:
Nov. 04, 2014

Filed:

Jan. 23, 2013
Applicant:

Panasonic Corporation, Kadoma, JP;

Inventors:

Kazuhiro Nishikawa, Osaka, JP;

Naomi Nishiki, Kyoto, JP;

Hidetoshi Kitaura, Osaka, JP;

Kimiaki Nakaya, Osaka, JP;

Atsushi Tanaka, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F28F 13/00 (2006.01); H01L 33/64 (2010.01); F28F 21/02 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20509 (2013.01); F28F 13/003 (2013.01); H01L 33/641 (2013.01); F28F 21/02 (2013.01);
Abstract

A graphite structure includes a graphite plate () that is made of a highly heat conductive material and has a thickness of 15 μm or less. A Ti layer () having a thickness of 10 nm to 200 nm covers the inner surfaces of through holes () penetrating the laminate of the graphite plate () from the front side to the back side of the laminate. Furthermore, continuous holes () are formed inside the through holes (). This configuration can achieve a smaller thickness and high reliability while keeping high thermal conductivity of graphite.


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