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:
May. 09, 2000
Filed:
Oct. 05, 1998
Applicant:
Inventors:
Yoshiharu Kato, Kasugai, JP;
Nobuyoshi Nakaya, Kasugai, JP;
Assignee:
Fujitsu Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365190 ; 365203 ; 365205 ; 365207 ; 365208 ; 365222 ;
Abstract
A semiconductor memory device comprises a plurality of memory cells for storing cell data. Word lines are connected to the memory cells. A first bit line includes a primary bit line connected to each memory cell and a secondary bit line. A first switching circuit is connected between the primary and secondary bit lines. A sense amplifier is connected to the secondary bit line. A second bit line is connected to the sense amplifier. A second switching circuit is connected between the second bit line and one of the primary and secondary bit lines.