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:
Nov. 30, 1999
Filed:
Apr. 09, 1998
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kanagawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 36523006 ; 36523003 ;
Abstract
A semiconductor memory device capable of conducting test operations includes a plurality of word drivers which keep word lines in an active state when the word drivers are selected until the word drivers are reset. The semiconductor memory device further includes a control circuit which successively selects more than one of the plurality of word drivers so as to achieve simultaneous activation of word lines corresponding to selected ones of the plurality of word drivers during the test operations.