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:
Dec. 10, 2013
Filed:
Dec. 03, 2010
Takenori Sato, Tokyo, JP;
Kazuhiko Kajigaya, Tokyo, JP;
Yoshimitsu Yanagawa, Tokyo, JP;
Tomonori Sekiguchi, Tokyo, JP;
Akira Kotabe, Tokyo, JP;
Satoru Akiyama, Tokyo, JP;
Takenori Sato, Tokyo, JP;
Kazuhiko Kajigaya, Tokyo, JP;
Yoshimitsu Yanagawa, Tokyo, JP;
Tomonori Sekiguchi, Tokyo, JP;
Akira Kotabe, Tokyo, JP;
Satoru Akiyama, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A sense operation with respect to simultaneously-accessed two memory cells is performed by time division by using two sense amplifiers, and thereafter restore operations are performed simultaneously. With this arrangement, it is not necessary to provide switches in the middle of global bit lines, and no problem occurs when performing the restore operation by time division. Further, because a parasitic CR model of a first sense amplifier and that of a second sense amplifier become mutually the same, high sensitivity can be maintained.