Spin valve magnetoresistive head having magnetic layers with different internal stress
US6157523A · kind A · utility
6Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1995 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Sep 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spin valve magnetoresistive head includes a first soft magnetic layer and a second soft magnetic layer having larger internal stress than that of the first magnetic layer. The larger internal stress of the second soft magnetic layer is created by injecting the second soft magnetic layer with a selected type of ion. Also included in the head is a nonmagnetic layer formed between the first soft magnetic layer and the second soft magnetic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.