Magnetoresistive head and magnetic recording drive
US5850323A · kind A · utility
21Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention concerns a magnetoresistive head for converting a change in magnetic field into a change in resistance by virtue of a spin valve magnetoresistive effect. This magneto-resistive transducer has superposed sequentially on a substrate an underlayer formed of two layers consisting of a tantalum film and a nickel iron based alloy film, an antiferromagnetic layer, a first soft magnetic layer, a nonmagnetic metal layer, and a second soft magnetic layer in the order mentioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.