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:
Jun. 18, 1996
Filed:
Oct. 07, 1994
Applicant:
Inventors:
Kenji Shibata, Kawasaki, JP;
Yukinori Kodama, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365200 ; 36518907 ; 36523006 ;
Abstract
A comparator 5 outputs a match signal EQ and a redundancy selection signal with active when an address A4 to A0 is a redundant address in order to select a redundant word line RWL0 or RWL1 for replacing word line WL0 or WL1. A decoder 61 supplies a potential VCC+.alpha. to a drain of an FET 60 when both the match signal EQ and the redundancy selection signal S0 are active. A gate driver 62 supplies a high potential VCC to the gate of the FET 60 for turning ON the FET 60 when the redundancy selection signal S0 is active.