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:
Apr. 08, 2008
Filed:
Jul. 12, 2005
Applicant:
Zeev Cohen, Zichron-Yaakov, IL;
Inventor:
Zeev Cohen, Zichron-Yaakov, IL;
Assignee:
Infineon Technologies Flash GmbH & Co. KG, Dresden, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for column redundancy re-use includes arranging the memory array into a plurality of addressable first array columns and a plurality of addressable second array columns. The column redundancy structure is also arranged into an addressable first redundancy column and an addressable second redundancy column. A first column array which is found to be defective is replaced by mapping its address to the first redundancy column. In a similar manner, a second column array which is found to be defective is replaced by mapping its address to the second redundancy column.