Reverse complement magnetic tunnel junction (MTJ) bit cells employing shared source lines, and related methods
US9548096B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 26, 2015 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B61/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Reverse complement MTJ bit cells employing shared source lines are disclosed. In one aspect, a 2T2MTJ reverse complement bit cell employing shared source line is provided. Bit cell includes first MTJ and second MTJ. Value of first MTJ is complement of value of second MTJ. First bit line is coupled to top layer of first MTJ, and first electrode of first access transistor is coupled to bottom layer of first MTJ. Second bit line is coupled to bottom layer of second MTJ, and first electrode of second access transistor is coupled to top layer of second MTJ. Word line is coupled to second electrode of first access transistor and second access transistor. Shared source line is coupled to third electrode of first access transistor and second access transistor. Employing shared source line allows the bit cell to be designed with reduced parasitic resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.