Method for refreshing a flash memory
US7551503B2 · kind B2 · utility
6Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2006 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jun 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plurality of cells of a flash memory are tested to determine if they need to be refreshed. The cells are read and a plurality of different sensing ratios are used to determine if any of the cells need to be refreshed. Any cells that are determined to need refreshing are refreshed. The cells are read using only a single constant gate voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.