Generating reference currents compensated for process variation in non-volatile memories
US7675792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2007 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Apr 24, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a current reference generator device, a voltage reference generator stage generates a reference voltage (Vref) and an active element output stage receives the reference voltage (Vref) and outputs a reference current (Iref) as a function of the reference voltage (Vref). A control stage is operatively coupled to the voltage reference generator stage and to the active element output stage and controls a first trimmable parameter (m) associated to the voltage reference generator stage and a second trimmable parameter associated to the active element output stage, so as to compensate for changes in a value of the reference current (Iref) due to manufacturing process deviations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.