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:
Sep. 29, 1992
Filed:
Nov. 05, 1991
Applicant:
Inventors:
Toshio Yamada, Osaka, JP;
Michihiro Inoue, Ikoma, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518901 ; 365190 ; 365203 ;
Abstract
In a semiconductor memory device comprising memory cells in which first and second potentials correspond to the logic values '0' and '1', the first potential is closer to the second potential than the potential of unselected word lines, by 0.3 V or more. The pull-up transistor is of the N-type, and the pull-down transistor is of the P-type.