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. 19, 1987
Filed:
Jun. 02, 1986
Applicant:
Inventor:
Bulent M Basol, Los Angeles, CA (US);
Assignees:
Standard Oil Commercial Development Company, Cleveland, OH (US);
BP Solar International Ltd., London, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ; C23C / ; H01L / ;
U.S. Cl.
CPC ...
204 345 ; 29572 ; 29589 ; 29590 ; 204 371 ; 204 40 ; 427 88 ; 427 89 ; 427 91 ; 136256 ; 136260 ; 136264 ;
Abstract
A method of making an ohmic content to a thin film of a II-VI compound semiconductor. The contact is made by etching the film with an acidic solution and thereafter treating the etched surface with an alkaline solution. A layer of copper 5 to 50 angstroms thick is deposited on the etched and treated surface and covered by a different metal. The contact may be heat treated to improve its performance.