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. 22, 1997
Filed:
May. 08, 1995
Applicant:
Inventors:
Christopher Harris, Sollentuna, SE;
Andrei Konstantinov, Linkoping, SE;
Erik Janzen, Borensberg, SE;
Assignee:
ABB Research Ltd., Zurich, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 77 ; 257631 ; 257636 ; 257646 ;
Abstract
A semiconductor device comprises at least one semiconductor layer (1-3) of SiC and a layer (6) applied on at least a portion of an edge surface (19) of said SiC-layer so as to passivate this edge surface portion. At least the portion of said passivation layer closest to said edge surface portion of the SiC-layer is made of a first crystalline material, and the passivation layer comprises a portion made of a second material having AIN as only component or as a major component of a crystalline alloy constituting said second material.