Semiconductor storage device
US8219861B2 · kind B2 · utility
14Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2011 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/0483
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
As a semiconductor storage device that can efficiently perform a refresh operation, provided is a semiconductor storage device comprising a non-volatile semiconductor memory storing data in blocks, the block being a unit of data erasing, and a controlling unit monitoring an error count of data stored in a monitored block selected from the blocks and 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.