Read disturb reclaim policy
US9653176B2 · kind B2 · utility
11Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2016 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jun 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3427
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Memory systems may include a memory including a plurality of memory blocks and a controller. The controller calculates an effective read disturb based on both a direct neighbor read disturb count and a non-direct neighbor read disturb count. The controller selects a wordline with the largest effective read disturb for test read and deciding whether to reclaim the data of the block based on the errors on the wordline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.