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:
Nov. 04, 2003
Filed:
Jun. 11, 2002
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 ;
U.S. Cl.
CPC ...
G11C 8/00 ;
Abstract
This DRAM includes a driver circuit which is provided to be common to a plurality of columns and which lowers level of one of selected first and second bit lines to “L” level in accordance with potentials of first and second write data lines. Therefore, as compared with a conventional DRAM in which a driver circuit is provided for each column, the number of transistors is decreased and a layout area is reduced.
Taito, Yasuhiko. (2003). Semiconductor memory device having write column select gate (U.S. Patent No. 6643214). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6643214
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