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. 25, 1976
Filed:
Apr. 30, 1975
Applicant:
Inventors:
Ivan Ladany, Stockton, NJ (US);
Donald Paul Marinelli, III, Trenton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 89 ; 357 67 ; 357 71 ; 427 91 ; 427125 ; 427380 ; 427383 ;
Abstract
Gold is deposited onto a heated surface of N type semiconductor material composed of either gallium arsenide, gallium phosphide, aluminum gallium arsenide or aluminum gallium phosphide. The surface of the gallium compound is cooled to room temperature whereupon tin is deposited onto the gold. The semiconductor material is then reheated until the tin alloys with and through the gold into the material. A solderable surface may be applied to the semiconductor material by applying a film nickel and then a film of gold onto the alloyed surface.