Method, apparatus and system to determine access information for a phase change memory
US8649212B2 · kind B2 · utility
67Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2013/0057
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for determining access information describing an accessing of a phase change memory (PCM) device. In an embodiment, an initial read time for a PCM cell is determined based on a final read time for the PCM cell, set threshold voltage information and a reset threshold voltage drift, wherein the final read time and the initial read time define a time window for reading the PCM cell. In another embodiment, a time window extension is determined based on a reset threshold voltage drift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.