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:
Aug. 12, 2014
Filed:
Oct. 25, 2011
Applicant:
Tetsuaki Okahiro, Tokyo, JP;
Inventor:
Tetsuaki Okahiro, Tokyo, JP;
Assignee:
PS4 Luxco S.a.r.l., Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes: a sense amplifier including an equalizing circuit that equalizes a pair of bit lines; an equalizing control circuit that converts the amplitude of an equalizing signal into a VDD level, and a word driver that controls a sub word line based on a timing signal. The word driver includes a level shift circuit for changing the operation timing of the sub word line in accordance with the VDD level, allowing a timing to complete the equalizing operation and a timing to reset the sub word line to synchronize even when the level of the VDD level is changed.