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. 11, 2000
Filed:
Jun. 09, 1997
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
There is provided a heat sink having excellent heat dissipation characteristics and mechanical reliability, which is used for motors for electric vehicles, control circuits therefor, internal combustion engines, general power control units, general motors, general semiconductors (CPUs, power modules, etc.), optical semiconductors and various electronic components, etc. The heat sink is configured so that an aluminum alloy layer is formed on at least one side or on both sides of a metallic plate shaped body and fins are formed on the aluminum alloy layer. Because the fins are formed on the aluminum alloy layer provided on the metallic plate shaped body, satisfactory thermal diffusion is effected in the metallic plate shaped body, and the thermal resistance between the metallic plate shaped body and the fin is low, so that the heat radiating effect is high, and the heat sink can be made small. Also, excellent and stable heat dissipation can be achieved for a long period of time.