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. 14, 1987
Filed:
Dec. 28, 1984
Applicant:
Inventor:
Bulent M Basol, Los Angeles, CA (US);
Assignee:
Sohio Commercial Development Co., Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 71 ; 357 65 ; 357 61 ; 357 16 ; 357 30 ; 357-4 ;
Abstract
Novel ohmic contacts are provided for p-type semiconductor compounds comprising at least one of the metals of Class IIB of the Periodic Table of Elements and one of the non-metal elements of Class VIA of the Periodic Table of Elements, as well as a method for forming such novel ohmic contacts. These ohmic contacts comprise a multilayer metal contact wherein the first layer provides a lasting stable contact with the p-type semiconductor; the additional layers provide the necessary electrical conductivity for the contact to be efficient.