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:
Mar. 06, 2007
Filed:
Feb. 10, 2004
Benoit Nadeau-dostie, Gatineau, CA;
Robert A. Abbott, Ottawa, CA;
Benoit Nadeau-Dostie, Gatineau, CA;
Robert A. Abbott, Ottawa, CA;
LogicVision, Inc., San Jose, CA (US);
Abstract
A method and circuit for repairing a memory array having one or more memory segments each having one spare column and a predetermined number of spare rows common to all segments, the method comprises, while testing the memory array for failures, generating an equal number of unique segment repair solutions for each segment with each segment repair solution including one defective column address, if any, and a number of defective row addresses, if any, corresponding to the predetermined number of spare rows; and, after completing testing, analyzing all segment repair solution combinations consisting of one segment repair solution selected from each segment; and identifying the best segment repair solution combination of combinations having a number of different defective row addresses which is less than or equal to the predetermined number of spare rows.