Flexible row redundancy system
US7774660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2008 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Aug 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/808
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A row redundancy system is provided for replacing faulty wordlines of a memory array having a plurality of banks. The row redundancy system includes a remote fuse bay storing at least one faulty address corresponding to a faulty wordline of the memory array; a row fuse array for storing row fuse information corresponding to at least one bank of the memory array; and a copy logic module for copying at least one faulty address stored in the remote fuse bay into the row fuse array; wherein the copy logic module is programmed to copy the at least one faulty address into the row fuse information stored in the row fuse array corresponding to a predetermined number of banks in accordance with a selectable repair field size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.