Read disturb scorecard
US8503257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/0411
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for handling read disturbs based on one or more characteristics of read operations performed on a non-volatile memory (“NVM”). In some embodiments, a control circuitry of a system can generate a variable damage value determined based on one or more characteristics of a read operation. Using the damage value, the control circuitry can update a score associated with the block. If the control circuitry determines that the score exceeds a pre-determined threshold, at least a portion of the block can be relocated to a different memory location in the NVM. In some embodiments, portions of the block may be relocated over a period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.