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. 22, 1999
Filed:
Jul. 27, 1998
Applicant:
Inventors:
Mako Kobayashi, Hyogo, JP;
Tetsushi Tanizaki, Hyogo, JP;
Kazutami Arimoto, Hyogo, JP;
Teruhiko Amano, Hyogo, JP;
Takeshi Fujino, Hyogo, JP;
Takahiro Tsuruda, Hyogo, JP;
Fukashi Morishita, Hyogo, JP;
Mitsuya Kinoshita, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
36523003 ; 365200 ; 365201 ;
Abstract
Regular memory cell arrays are arranged in divided regions in three rows and three columns except for the region located at the second row and the second column. The region located at the intersection of the second row and the second column is provided with a redundant memory cell array. The replacement operation of the regular memory cell arrays with the redundant memory cell array is provided for each memory cell block.