Magneto resistive effect type head having a stressed insulation layer
US5870262A · kind A · utility
8Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for producing a magneto-resistive effect type thin film magnetic head including a thin film coil, a pair of magnetic poles and an insulation layer consisting of a thermosetting resin for electrically insulating mutually between the thin film coil and the magnetic poles. A photoresist material is used as the thermosetting resin. A thermal treatment of the thermosetting resin is conducted in an atmosphere including at least oxygen, in such a manner that a film stress of the insulation layer after thermal treatment is within a range of -10 MPa to +25 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.