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. 25, 2001
Filed:
Jun. 29, 2000
Applicant:
Inventors:
Hideaki Nagaoka, Hyogo, JP;
Kiyoyasu Akai, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A memory cell power supply line is provided to supply a ground potential corresponding to each column in a regular memory cell array. Among fuse elements, the fuse element corresponding to the memory cell column that is to be subjected to redundancy replacement is decoupled, whereby supply of the ground potential to the regular memory cell column to be replaced is suppressed.