Volatile memory and one-time program (OTP) compatible memory cell and programming method
US9449709B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/146
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A volatile and one-time program (OTP) compatible asymmetric memory cell may include a first pull-up transistor having a first threshold voltage. The asymmetric memory cell may also include a second pull-up transistor having a second threshold voltage that differs from the first threshold voltage. The asymmetric memory cell may further include a switch coupled to a well of the first pull-up transistor and the second pull-up transistor to alternate between a program voltage (Vpg) and a power supply voltage. The asymmetric memory cell may also include a peripheral switching circuit to control programming of the asymmetric memory cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.