Overcoat magnetic head slider having overcoat and magnetic disk device
US5805380A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Jan 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6011
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An overcoat for sufficiently preventing mechanical wear of a magnetic head slider caused by contact with a magnetic record medium is provided in a thin film head of a magnetic disk device. The magnetic head slider is provided with the overcoat constituted by a film including two layers of a silicon layer that is an adhesive layer and a diamond-like carbon layer that is a protective layer and the silicon layer includes nitrogen component. Further, nitrogen concentration of the silicon layer 2 ranges from 1 through 57%. The thickness of the silicon layer ranges from 5 through 300 angstroms and the thickness of the carbon layer ranges from 10 through 500 angstroms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.