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. 25, 1991
Filed:
Nov. 21, 1989
Applicant:
Inventor:
Joji Katsura, Nishinomiya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G11C / ;
U.S. Cl.
CPC ...
365205 ; 365207 ; 365208 ; 36518901 ; 307530 ;
Abstract
Disclosed is a semiconductor memory device having a circuit integrally comprising both functions as the sense amplifier circuit for operating when reading out data from the memory cell and as the drive circuit for operating when writing data into the memory cell. By such structure, fast and stable operation of the semiconductor memory device is realized, and the area of the portions corresponding to the sense amplifier circuit and drive circuit can be reduced, so that higher density and higher degree of integration of semiconductor memory device may be realized.