Reliable data storage in analog memory cells subjected to long retention periods
US8169825B1 · kind B1 · utility
65Cited by
347References
34Claims
0Family size
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Key dates
| Filing date | Sep 1, 2009 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Dec 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5641
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for data storage in a non-volatile memory includes storing data in the non-volatile memory using a first storage configuration while the non-volatile memory is supplied with electrical power. After storing the data, an indication is accepted, indicating that shut-off of the electrical power is imminent. Responsively to the indication and before the shut-off, at least some of the data is re-programmed in the non-volatile memory using a second storage configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.