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. 23, 2014
Filed:
Dec. 07, 2011
Applicants:
Shinichi Takayama, Tokyo, JP;
Kazuhiko Kajigaya, Tokyo, JP;
Inventors:
Shinichi Takayama, Tokyo, JP;
Kazuhiko Kajigaya, Tokyo, JP;
Assignee:
PS4 Luxco S.a.r.l., Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 11/4074 (2006.01); G11C 11/4097 (2006.01); G11C 11/4094 (2006.01); G11C 7/12 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4097 (2013.01); G11C 11/4074 (2013.01); G11C 11/4094 (2013.01); G11C 7/12 (2013.01);
Abstract
A semiconductor device includes a global bit line and a local bit line, and a switch coupled therebetween. Upon performing a precharge operation, a precharge voltage is supplied to the global bit line with turning the switch ON, so that the local bit line receives the precharge voltage through the global bit line and the switch, and after a lapse of a predetermined time, a precharge voltage is further supplied to the local bit line without an intervention of the global bit line and the switch.