Spin valve magnetic head with three underlayers
US6833981B2 · kind B2 · utility
39Cited by
13References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Nov 2, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spin valve magnetic head, providing on a substrate, a laminated structure that has an antiferromagnetic layer, fixation layer, non-magnetic layer and unconstraint layer, and having a first underlayer of Ta, a second underlayer of NiFeCr and a third underlayer of NiFe, which underlayers are interposed between the substrate and the laminated structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.