Magnetic thin film memory and recording and reproducing method and apparatus using such a memory
US6104632A · kind A · utility
51Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1999 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | May 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/1675
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic thin film memory includes a stack of magnetic thin film devices each comprising a first magnetic layer, a second magnetic layer of higher coercive force than the first magnetic layer on the first magnetic layer, and a non-magnetic layer between the first magnetic layer and the second magnetic layer. A conductive write wire separated from each magnetic thin film device by an insulator enables the application of a magnetic field. A pair of electrodes enables electric current flow through the magnetic layers in order to detect changes in magnetoresistance dependent on information recorded in the devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.