Nonvolatile semiconductor memory and method of operating the same
US6947326B2 · kind B2 · utility
11Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Jul 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3459
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first decision process, which reads data from a memory cell under a first deciding condition to decide pass/fail and applies a signal to the memory cell to change an amount of charge stored in the memory cell if the data is decided as fail, and a second decision process, which reads the data from the memory cell under a second deciding condition that is relaxed rather than the first deciding condition to decide the pass/fail, are executed, and then the processes are repeated from the first decision process when the data is decided as fail in the second decision process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.