Write-tracking circuitry for memory devices
US8811070B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/419
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A write-tracking circuit for a writable memory array has one or more dummy memory cells and is configured to write different values to the one or more dummy memory cells. Durations of pulses applied to word lines of the memory array during write operations are controlled based on durations of writing the different values to the one or more dummy memory cells. In at least some embodiments, the write-tracking circuit is configured to write the different values to the one or more dummy memory cells during a single write operation. In at least some embodiments, the write-tracking circuit is configured to write the different values to at least one of the one or more dummy memory cells during different write operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.