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. 26, 2005
Filed:
Jun. 26, 2003
Toru Asano, Omihachiman, JP;
Sang Hoo Dhong, Austin, TX (US);
Takaaki Nakazato, Austin, TX (US);
Osamu Takahashi, Round Rock, TX (US);
Toru Asano, Omihachiman, JP;
Sang Hoo Dhong, Austin, TX (US);
Takaaki Nakazato, Austin, TX (US);
Osamu Takahashi, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A decoder for use in wordline/bitline redundancy control is disclosed. In one aspect, the decoder includes first and second wordlines respectively coupled to redundant first and second wordlines, where the first and second wordlines are configured to be activated based on decoded first and second addresses. In addition, the decoder includes first and second shift registers respectively coupled to the redundant first and second wordlines, where each is configured to respectively activate the redundant first and second wordlines when the first or second wordlines contain a defect. In addition, a method of selecting wordlines for use in wordline/bitline redundancy control and a wordline decoder having redundancy control capabilities are also disclosed.