Chromium-alloy seedlayers for recording media
US6756136B1 · kind B1 · utility
2Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jul 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium on glass or Al substrates with a film structure of Cr—X or (Cr—X)Ox seedlayer/underlayer/magnetic layer/carbon overcoat, in which the solid solubility of X is at least 3 atomic percent in Cr, the heat of oxide formation of X is less than that of Cr or a lattice tuning capability of X is at least 2% that of Cr and a manufacturing process thereof are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.