System and method for preserving an error margin for a non-volatile memory
US7269058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2005 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5645
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for preserving an error margin for a non-volatile memory that includes a memory cell, a reference cell coupled to a reference current mirror configured to mirror current through the reference cell. The system comprises a memory current mirror coupled to the memory cell and configured to mirror current through the memory cell. A sense amplifier has a first and a second input. The first input is coupled to the reference current mirror and the second input is coupled to the memory current mirror. The sense amplifier is configured to compare a voltage across the memory cell with a voltage across the reference cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.