Read disturb effect determination
US8930778B2 · kind B2 · utility
38Cited by
10References
20Claims
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Assignee
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Key dates
| Filing date | Nov 15, 2012 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Apr 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/349
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprising a non-volatile memory and a controller. The controller is coupled to the non-volatile memory and configured to (i) accumulate a read disturb count for a first region of the non-volatile memory, (ii) accumulate error statistics for a second region of the non-volatile memory, (iii) determine, based upon both the read disturb count and the error statistics, whether the first region has reached a read disturb limit, and (iv) in response to determining that the first region has reached the read disturb limit, relocate at least some data of the first region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.