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. 01, 2011
Filed:
Mar. 21, 2008
Applicants:
Yasuko Tonomura, Tokyo, JP;
Satoshi Katagiri, Tokyo, JP;
Yukio Fuji, Tokyo, JP;
Inventors:
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes: plural bit lines connected with plural memory cells, respectively; plural transfer lines allocated in common to the plural bit lines; sense amplifiers (SA) and (SA) connected to these transfer lines, respectively; and a control circuit making the sense amplifier (SA) perform a converting operation during an amplifying operation performed by the sense amplifier (SA). Because the plural sense amplifiers are allocated to the same bit lines, and these are operated in parallel in this way, data can be read at a high speed.