Giant magnetoresistance, production process and application to a magnetic sensor
US5677625A · kind A · utility
25Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetoresistance having three ferromagnetic layers (10, 20, 30) separated by non-magnetic layers (15, 25). The first ferromagnetic layer (10) has a magnetization orientable by a measuring current, the second layer (20) has a "free" magnetization and the third ferromagnetic layer (50) has a trapped or fixed magnetization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.