Fast verify for phase change memory with switch
US8605531B2 · kind B2 · utility
60Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | May 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/76
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A phase change memory with switch (PCMS) compensates for threshold voltage drift by utilizing a lower demarcation voltage for a verify operation after programming than for a read operation occurring at least a predetermined period of time after the programming operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.