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:
Sep. 09, 2008
Filed:
Jul. 14, 2006
Toru Asano, Omihachiman, JP;
Sang H. Dhong, Austin, TX (US);
Takaaki Nakazato, Kanagawa, JP;
Osamu Takahashi, Round Rock, TX (US);
Toru Asano, Omihachiman, JP;
Sang H. Dhong, Austin, TX (US);
Takaaki Nakazato, Kanagawa, JP;
Osamu Takahashi, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory system including a memory array with redundant wordlines. The memory system includes a memory wordline tester that determines if any of the wordlines exhibits a defect. The memory system also includes decoder redundancy logic that efficiently couples to wordline shift logic using a reduced number of control signal lines therebetween. The shift logic shifts defective wordlines to upstream wordlines in the array to bypass the defective wordlines.