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:
Oct. 30, 2001
Filed:
May. 31, 2000
Applicant:
Inventor:
Chikayoshi Morishima, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 5/06 ;
U.S. Cl.
CPC ...
G11C 5/06 ;
Abstract
During standby, bit lines BL,and /BL,are precharged, and the potentials of word lines WL,and WL,are set at a potential slightly higher than a ground potential. Since a stable retaining current flows through an access transistor into a node inside a memory cell holding the H level, the data can be retained with stability. Moreover, during an access, the selected word line is brought to the H level, while the unselected word lines are brought to a ground potential.