Partially etched protective overcoat for a disk drive slider
US5985163A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For use in a disk drive, a head comprising a slider having a bottom air bearing surface, a leading edge and a trailing edge; a magnetic transducer mounted by the slider at the trailing edge of the slider; and a protective overcoat adhered to the air bearing surface of the slider and having a leading edge and a trailing edge. The trailing edge of the protective overcoat being spaced from the trailing edge of the slider such that the minimum distance from the slider to the surface of a disk in the disk drive is between the magnetic transducer and the disk surface. A method for manufacturing a slider with an overcoat spaced from the trailing edge of the slider includes applying a carbon overcoat to the entire bottom air bearing surface, masking, and oxygen plasma etching exposed portions of the overcoated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.