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:
Apr. 06, 1999
Filed:
May. 21, 1997
Hideo Horita, Tokyo-To, JP;
Yoichi Miura, Tokyo-To, JP;
Masato Sasaki, Tokyo-To, JP;
Yoshio Hirayama, Tokyo-To, JP;
Dai Nippon Printingco., Ltd., , JP;
Abstract
An aluminum or aluminum alloy radiator possessing high reliability and excellent heat dissipation is provided. A process for producing an aluminum alloy radiator is also provided which has improved adhesion between the radiator and the mold resin and can prevent cracking in a resin molded portion. The aluminum alloy radiator, for a plastic molded type semiconductor device, comprising an anodized aluminum-iron alloy having an iron content of 0.5 to 3.0% by weight or an anodized aluminum-silicon alloy having a silicon content of 0.5 to 3.5% by weight. The process for producing an aluminum alloy radiator for a plastic molded type semiconductor device, comprising the steps of: anodizing an aluminum alloy; and subjecting the anodized aluminum alloy to sealing, wherein the aluminum alloy radiator after the sealing is heat-treated at a temperature of 180 to 250.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile