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. 30, 2003
Filed:
Jul. 15, 2002
Applicant:
Inventor:
Jun Ohtani, Hyogo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
Each of program units which is arranged to be adjacent to a memory array, stores redundant information of 1 bit necessary for replacement and repair. Prior to normal data read operation, the redundant information read from the program units is latched in a row select circuit. The row select circuit selectively activates one of word lines corresponding to the normal memory cells and a spare word line in accordance with whether the defective row addresses indicated by the redundant information are matched to an inputted row addresses, respectively.