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:
Jul. 12, 2005
Filed:
Apr. 01, 2003
Masakuni Kawagoe, Miyazaki, JP;
Akihiro Narumi, Miyazaki, JP;
Masakuni Kawagoe, Miyazaki, JP;
Akihiro Narumi, Miyazaki, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A semiconductor memory device includes a pair of bit lines; a first sense amplifier coupled to the pair of bit lines; and a first controller, which controls the first sense amplifier. The first sense amplifier includes a flip-flop circuit having a pair of NMOS transistors and a pair of PMOS transistors; a first transistor connected to a source terminal of the NMOS transistors in the flip-flop circuit; and a second transistor connected to a source terminal of the PMOS transistors in the flip-flop circuit. The first controller includes a first NOR circuit, having input terminals to which a write command signal and a sense amplifier driving signal are supplied and having an output terminal connected to a gate of the first transistor.