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. 02, 1992
Filed:
Jun. 05, 1991
Applicant:
Inventor:
Shigeki Nozaki, Kuwana, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365190 ; 36518911 ;
Abstract
A semiconductor memory device including a pair of bit lines, a memory cell provided between the pair of bit lines, and a potential difference control device connected to the pair of bit lines. The bit lines include a potential difference therebetween when information stored in the memory cell is read out. The potential difference control device has a transistor control for receiving a first control signal and for responding thereto; thereby, increasing the potential difference between the pair of bit lines up to a predetermined level so as to provide a high speed read-operation and to reliably discriminate a 'good' or a 'no good' reading when subjected to a screening test.