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:
Jan. 29, 2002
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
In a semiconductor memory device including a bit line precharge/equalizing circuit, the control system of the bit line precharge/equalizing circuit is changed in the normal operation mode and in the test mode. In the test mode, the bit line precharge/equalizing circuit is temporarily turned ON when an internal activation signal becomes non-active and then the bit line precharge/equalizing circuit is turned OFF after the potentials of paired bit lines are completely equalized.