Magnetic sensor
US6690163B1 · kind B1 · utility
25Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To provide a spin-valve magnetic head comprising a layered film having preferable magnetic properties in which an interface control film to reduce magnetostriction to almost zero is inserted.By suppressing or offsetting the influence of an interface layer which increases the magnetostriction of a soft magnetic free layer in a spin-valve magnetoresistive layered film and making the magnetic properties of the very thin soft magnetic free layer preferable, a stable magnetic head of high sensitivity which is not influenced by stress is obtained by the improvement in the magnetic properties of the very thin soft magnetic free layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.