Permanet magnet easy-axis biased magnetoresistive head
US5193039A · kind A · utility
19Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Apr 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for supplying bias to a magnetoresistive element in an encapsulated thin film head for reducing the likelihood of generation of Barkhausen noise when reading flux from a magnetic storage disk. The invention achieves a relatively uniform easy axis bias field in an easy to implement manner by creating a magnetic bias structure on the encapsulated heat at the same time as providing the contact pads for the MR element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.