Trapezoidal back bias and trilayer reader geometry with predetermined magnetization shape
US8724265B2 · kind B2 · utility
14Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2013 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetoresistive sensor is generally disclosed. Various embodiments of a sensor can have at least a trilayer sensor stack biased with a back biasing magnet adjacent a back of the trilayer sensor. The back biasing magnet, the trilayer sensor stack, or both have substantially trapezoidal shapes to enhance the biasing field and to minimize noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.