Method of producing magnetic head slider of the flying type having a protective coating
US5994035A · kind A · utility
11Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/255
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head slider has a protective film which forms, at a portion of an air bearing surface nearer to the air incoming side from the center, a hill-shaped crown of a desired height sufficient in terms of the mechanical durability of the protective film by a variation of the film thickness of the protective film and which is flat with a film thickness of 10 nm or less on the air outgoing side at which a magnetic head element is provided. This protective film may be a diamond-like carbon film (DLC) or a single layer structure of polycrystalline Si or else a layered structure of a combination of them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.