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:
Apr. 05, 1977
Filed:
Dec. 24, 1975
Applicant:
Inventors:
Shuichi Ohya, Tokyo, JA;
Masanori Kikuchi, Tokyo, JA;
Assignee:
Nippon Electric Company, Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 23 ; 307238 ; 357 13 ; 357 41 ; 357 54 ; 357 89 ;
Abstract
A non-volatile semiconductor memory device includes a gate insulating film which has a relatively thin portion in the vicinity of one of the source and drain regions at which p-n junction breakdown is performed for carrier injection.