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:
May. 22, 1979
Filed:
Jan. 10, 1978
Applicant:
Inventors:
Bernard Bourdon, Orsay, FR;
Gaston Sifre, Orsay, FR;
Assignee:
Alsthom-Atlantique, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
29590 ; 29589 ; 29591 ; 156630 ; 156665 ; 427 89 ; 427 90 ; 427 91 ; 427125 ; 427229 ;
Abstract
The invention relates to a method of manufacturing power semiconductors with pressed contacts and with an interdigitated structure. The thickest contact metal coverings are formed by application of a metal layer by serigraphy on a first thin metal layer deposited by evaporation in a vacuum.