Current perpendicular-to-the-plane spin valve type magnetoresistive transducer
US5668688A · kind A · utility
179Cited by
6References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | May 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transducer includes a spin valve ("SV") structure comprising a pinned ferromagnetic layer adjoining a first end portion thereof and a freely rotating ferromagnetic layer adjoining an oppositely disposed second end portion thereof. First and second current conductors adjoin the first and second end portions of the spin valve structure respectively in a current perpendicular-to-the-plane configuration ("CPP"). In a particular embodiment disclosed herein, a differential CPP transducer includes a pair of SV structures having first and second current conductors with a common current conductor intermediate the SV structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.