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. 01, 2003
Filed:
Nov. 28, 2001
Yuji Nakagawa, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor memory device that reduces the time for conducting a multiple word line selection test and operates stably. The semiconductor memory device includes memory cell blocks, row decoders, sense amps, block control circuits, and sense amp drive circuits. Each block control circuit generates a reset signal. The reset signal is used to select the word lines with the row decoders at timings that differ between the blocks. Each block control circuit provides the reset signal to the associated row decoder. The block control circuit also provides the reset signal to the associated sense amp drive circuit so that the sense amps are inactivated at timings that differ between the blocks.