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:
Aug. 11, 1998
Filed:
Mar. 17, 1997
Yoshiyuki Yamamoto, Itami, JP;
Takashi Tsuno, Itami, JP;
Takahiro Imai, Itami, JP;
Naoji Fujimori, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A diamond heat sink having a very high thermal property, to be used for radiation of semiconductor devices or compressors, includes a plate-shaped diamond substrate and fins for increasing the thermal property. The fins are combined with the substrate and are of a material having a heat conductivity of at least 1 (W/cm.multidot.K), for example, diamond. Such heat sink is produced by a simple process including arranging a base material and fins for growing diamond in such a manner that the surface of the base material and the upper ends of the fins are substantially the same height by the use of a suitable supporting member or by working the base material itself and growing diamond thereon by a gaseous phase synthesis method.