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:
Oct. 05, 2010
Filed:
Feb. 27, 2009
Applicants:
Tomoyuki Shibata, Tokyo, JP;
Kanji Oishi, Tokyo, JP;
Inventors:
Tomoyuki Shibata, Tokyo, JP;
Kanji Oishi, Tokyo, JP;
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a semiconductor memory having a plurality of memory banks that can be independently accessed, remedying bit registers that are substituted for defective memory cells are respectively provided for memory banks in a one-to-one relationship. Also, means for sharing the plurality of remedying bit registers in each memory bank is arranged.