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:
Apr. 05, 2005
Filed:
Oct. 28, 2003
Tetsuo Ashizawa, Kawasaki, JP;
Wataru Yokozeki, Kunitachi, JP;
Tetsuo Ashizawa, Kawasaki, JP;
Wataru Yokozeki, Kunitachi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor memory device comprises a memory cell array, a decoder unit selecting a word line of the memory cell array, a first dummy cell array connected to a first dummy bit line and disposed with the memory cell array at a first location away from the decoder unit along the word line, a second dummy cell array connected to second dummy bit lines and disposed with the memory cell array at a second location away from the decoder unit along the word line, the second location being farther from the decoder unit than the first location, and a timing control unit determining timing of activation and deactivation of an internal control signal.