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. 12, 2006
Filed:
Apr. 30, 2002
R. Dean Adams, St. George, VT (US);
Gerard M. Salem, Essex Junction, VT (US);
Timothy J. Von Reyn, Williston, VT (US);
R. Dean Adams, St. George, VT (US);
Gerard M. Salem, Essex Junction, VT (US);
Timothy J. von Reyn, Williston, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A fault recovery system for an array of memory cells. A register stores data indicating addresses of multi-cell fails and single-cell fails. A first fault correction system accesses data from the register to fix both multi-cell fails and single-cell fails. A second fault correction system does not access said register and fixes single-cell fails. During testing, if a multi-cell fail is detected the register stores its address by deleting an address of a single-cell fail if the register is full.