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. 06, 2011
Filed:
Dec. 05, 2008
Keiichiro Kikuchi, Kitakata, JP;
Norihiko Yamaki, Aizuwakamatsu, JP;
Hiroaki Wada, Aizuwakamatsu, JP;
Keiichiro Kikuchi, Kitakata, JP;
Norihiko Yamaki, Aizuwakamatsu, JP;
Hiroaki Wada, Aizuwakamatsu, JP;
Spansion LLC, Sunnyvale, CA (US);
Abstract
A memory that employs a redundant cell array for recovery of one or more failed core cell arrays of multi-bit memory cells is described. The memory includes a plurality of core cell arrays, at least one redundant cell array, and a memory controller. The memory controller is configured to dynamically assign the redundant cell array to a failed core cell array when erasing at least a portion of the plurality of core cell arrays. The memory controller is further configured to provide read/write access to the redundant cell array when the failed core cell array is selected for read/write access.