Semiconductor storage device
US8060797B2 · kind B2 · utility
69Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/0483
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor storage device can efficiently perform a refresh operation. A semiconductor storage device is provided which includes a non-volatile semiconductor memory storing data in blocks, the block being a unit of data erasing. A controlling unit is further included monitoring an error count of data stored in a monitored block selected from the blocks and for refreshing data in the monitored block in which the error count is equal to or larger than a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.