Method for extending period of data retention of flash memory device and device for the same
US9904479B1 · kind B1 · utility
2Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2017 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3495
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for extending period of data retention of a flash memory device and a device for the same are disclosed. In the present invention, the temperature of the flash memory device is detected by a temperature sensor. According to the temperature and P/E cycles of the flash memory device, a safe period is obtained for the data retention of the flash memory device. By refreshing each block of the flash memory device during the safe period, the data retention period is refreshed, and the data stored in the flash memory device can be prevented from bit error caused by exceeding data retention period or read disturb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.