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.:
Date of Patent:
Jul. 17, 2018
Filed:
Jan. 20, 2014
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Inventors:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01L 23/36 (2006.01); H01L 23/42 (2006.01); H01L 23/367 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20436 (2013.01); H01L 23/3675 (2013.01); H01L 23/42 (2013.01); H05K 7/20454 (2013.01); H05K 7/20854 (2013.01); H01L 2924/0002 (2013.01);
Abstract
In a configuration that a thermal grease is applied between a circuit board having an electronic component mounted thereon and a case body containing the board to thermally connect both by the thermal grease, the application has not been easy since the thermal grease is high in initial viscosity. A thermal grease is made of a material that has a viscosity not impeding applicability at the initial stage (before application), for example, a viscosity of about 50-400 (Pa·s), and that increases to about 600-3,000 (Pa·s) in viscosity after application.