Magnetic head with polycrystalline silicon layer on slide running surface
US5781376A · kind A · utility
20Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1995 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Dec 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The magnetic head disclosed has a slider which comprises a running surface where contact-sliding with respect to a magnetic recording medium occurs, and a polycrystalline silicon film which is provided on at least a portion of said running surface. The polycrystalline silicon film has a thickness of 3 to 10 nm. The running surface is formed of Al.sub.2 O.sub.3.TiC ceramic or silicon. This arrangement is effective in preventing an attraction phenomenon between the head and medium, reducing a frictional coefficient and suppressing damage to the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.