Non-volatile semiconductor storage apparatus
US8918699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2013 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/0411
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a non-volatile semiconductor storage apparatus is configured to decide determination periods respectively corresponding to each of management blocks based on rewrite count information items and a temperature, and to perform a determination processing for each of management blocks for each determination period. The determination processing includes determining whether first data read from a block in the blocks is normal based on the number of errors that are occurred in the first data. The apparatus is configured to perform a rewrite processing of rewriting the first data to second data which is error-corrected when it is determined that the first data is not normal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.