OTP scheme with multiple magnetic tunnel junction devices in a cell
US9165631B2 · kind B2 · utility
9Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A one time programming (OTP) apparatus unit cell includes multiple magnetic tunnel junctions (MTJs) and a shared access transistor coupled between the multiple MTJs and a fixed potential. Each of the multiple MTJs in a unit cell can be coupled to separate programming circuitry and/or separate sense amplifier circuitry so that they can be individually programmed and/or individually sensed. A logical combination from the separate sense amplifiers can be generated as an output of the unit cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.