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. 12, 1994
Filed:
Oct. 08, 1991
Applicant:
Inventors:
Kazutoyo Narita, Hitachi, JP;
Yoichi Nakashima, Ibaraki, JP;
Hiroshige Okinoshima, Annaka, JP;
Tadashi Nosaka, Kariya, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257788 ; 257789 ; 257790 ; 257791 ; 257795 ;
Abstract
A semiconductor rectifying device, suitable for installation in vehicles, comprises a cup-shaped metallic container, a semiconductor chip having a pn junction, one of whose main surfaces is bonded to the bottom surface of the container, a lead bonded to the other main surface of the semiconductor chip, and a silicone resin layer containing silica powder, with which layer an exposed portion of the semiconductor chip is covered.