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:
Jun. 28, 1977
Filed:
Oct. 01, 1975
Applicant:
Inventor:
Tuh-Kai Koo, Colorado Springs, CO (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
148175 ; 29578 ; 148189 ; 156661 ; 357 50 ; 357 55 ; 427 88 ;
Abstract
A matrix array of semiconductor diodes formed in an epitaxial layer of a semiconductor wafer and being dielectrically isolated from each other by two orthogonal sets of parallel insulating oxide regions, one set extending completely through the epitaxial layer and the other set extending only partially through the epitaxial layer. A preferred method of forming the matrix array is also disclosed.