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:
Mar. 04, 2003
Filed:
Jul. 25, 2001
Applicant:
Inventors:
Ayako Kitamoto, Kawasaki, JP;
Masato Matsumiya, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A semiconductor memory device includes bit lines which transfer data of memory cells, a sense amplifier which is connected to the bit lines, and amplifies data on the bit lines that appears in response to an external access, and a latch circuit which is connected to the bit lines, and amplifies and latches data on the bit lines that appears as data to be refreshed.