Magneto-resistive head and method of producing the same
US5792546A · kind A · utility
10Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1994 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Aug 12, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2495
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-resistive head is provided with a substrate, a lower shield layer made of a Fe-system magnetic material and provided above the substrate, and a non-magnetic insulator layer provided above the lower shield layer. The non-magnetic insulator layer has a function of suppressing deterioration of surface roughness of the lower shield layer when subjected to an annealing process under a magnetic field in order to improve magnetic characteristics of the lower shield layer to desired magnetic characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.