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. 14, 2010
Filed:
Apr. 20, 2007
Applicant:
Toshiyuki Uetake, Kawasaki, JP;
Inventor:
Toshiyuki Uetake, Kawasaki, JP;
Assignee:
Fujitsu Semiconductor Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01); G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes memory cells, word lines connected to the memory cells, word driver circuits for driving the word lines, a decoder circuit group including a plurality of decoder circuits outputting a decoder signal for selecting at least one of the word driver circuits, decoder lines connecting the decoder circuits to the word driver circuits, and an equalizing circuit for electrically disconnecting the decoder lines from the decoder circuits and equalizing the voltages of the decoder lines connected to the decoder circuits belonging to the decoder circuit group.