Systems and methods for sensing a memory element
US6898134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2003 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/2254
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and programs for recalibrating a sense amplifier. A representative method includes: measuring a physical property of a memory cell to produce a first measurement; comparing the first measurement to a first range, the first range being indicative of a short or open circuit in the memory cell; halting the sense of the selected memory cell if the first measurement exceeds the first range; comparing the first measurement to a second range, the second range being a predetermined range signifying a recalibration of the sense amplifier may be necessary; proceeding with the sense if the first measurement is within the first range and the second range; repeating the steps of measuring and comparing for a predetermined number of iterations, if after each iteration, the measurement exceeds the second range but is within the first range; and recalibrating the sense amplifier, if after the predetermined number of iterations, the measurement still exceeds the second range but is within the first range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.