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. 29, 1978
Filed:
Apr. 08, 1976
Applicant:
Inventors:
Jozef Cornu, Stekene, BE;
Erich Weisshaar, Baden, CH;
Assignee:
BBC Brown Boveri & Company, Limited, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 38 ; 357 52 ; 357 53 ; 357 55 ; 357 58 ;
Abstract
A semiconductor power element comprising two successive opposed polarity planar pn junctions, said element being positively tapered on its lateral surface in the regions of both pn junctions to form an average angle of both tapers of between 30.degree. and 60.degree..