Method of writing to a spin torque magnetic random access memory
US9245611B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2015 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/0411
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes sampling magnetic bits, applying a write current pulse to the magnetic bits to set them to a first logic state, resampling the magnetic bits, and comparing the results of sampling and resampling to determine the bit state for each magnetic bit. A read or write operation may be received after initiation of writing back magnetic bits having the second state, where the write-back can be aborted for a portion of the bits in the case of a write operation. The write-back may be performed such that different portions of the magnetic bits are written back at different times, thereby staggering the write-back current pulses in time. An offset current may also be used during resampling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.