Carbon seedlayer on non-metallic substrates for magnetic recording media
US5800863A · kind A · utility
1Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1997 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jan 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic recording media comprise non-metallic substrates which are coated with a seedlayer of carbon or silicon. The seedlayer improves the magnetic recording characteristics of a subsequent magnetic layer. The effect of the seedlayer is further enhanced by use of an underlayer, preferably a chromium or chrome alloy ground layer, between the seedlayer and magnetic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.