Block behavior tracking in a memory system
US9547571B2 · kind B2 · utility
5Cited by
5References
24Claims
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Key dates
| Filing date | May 20, 2015 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/5004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage device with a memory may include memory block health monitoring and behavior tracking. Each memory block may be analyzed based on one or more dummy wordlines within the block may not be accessible for normal data storage. The dummy wordlines may be programmed with a known data pattern that can be tracked and analyzed for potential errors, which may be used as representation of the health of the memory block. Adjustments can be made to the operating parameters (e.g. read voltages) to optimize each memory block based on its error analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.