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:
Mar. 01, 1994
Filed:
Sep. 11, 1992
Applicant:
Inventor:
Hideki Itoh, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365 63 ; 365 51 ; 257767 ;
Abstract
Each of the bit lines of a semiconductor memory has an intermediate section with low electrical resistance and low electromigration resistance. If the bit line is shorted to a word line, during burn-in the electrical resistance of the intermediate section increases because of electromigration, thereby preventing excess current from leaking through the shorted bit line during subsequent use.