Method for repairing a neighborhood of rows in a memory array using a patch table
US7966518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/804
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for repairing a neighborhood of rows in a memory array using a patch table is disclosed. First data to be stored in row N in a memory array of the memory device, second data, if any, stored in row N−1 in the memory array, and third data, if any, stored in row N+1 in the memory array are stored in a temporary storage area of a memory device. The first data is written in row N, and, in response to an error, the first data, the second data, if any, and the third data, if any, are written in respective rows in a repair area in the memory device. The addresses of rows N−1, N, and N+1 are added to a table stored in the memory device to indicate which rows in the repair area should be used instead of rows N−1, N, and N+1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.