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. 26, 2004
Filed:
May. 22, 2003
Applicant:
Inventors:
Hiroki Fujisawa, Tokyo, JP;
Hideyuki Yokou, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/02 ;
U.S. Cl.
CPC ...
G11C 5/02 ;
Abstract
In a semiconductor memory device including a bank equipped having a predetermined memory capacity, a sub amplifier block is disposed at a center of the bank divided into two sections. The sub amplifier block includes a plurality of sub amplifiers connected to sense amplifier sets disposed in the two memory regions through an LIO and a sub amplifier control circuit for controlling the sub amplifiers. If the sub amplifier control circuit selects a word line, a control operation is performed to activate only one side of the sub amplifiers positioned on both sides of the word line to thereby reduce the power consumed for activating the sub amplifiers.