Magnetic recording GMR read back sensor and method of manufacturing
US6721146B2 · kind B2 · utility
8Cited by
20References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | May 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49044
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A GMR magnetic sensor is described. The sensor uses one antiferromagnetic layer for stabilizing the pinned layer and another antiferromagnetic layer for providing magnetic bias stabilization of the free layer. Both antiferromagnetic layers are made of the same material and are initialized in the same process step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.