Method of manufacturing a bicrystal cluster magnetic recording medium
US5733370A · kind A · utility
41Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Jan 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/73921
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a magnetic alloy layer having a bicrystal cluster microstructure and, hence, reduced medium noise, is formed by depositing a seed layer on a glass or a glass-ceramic material substrate, oxidizing the seed layer, depositing an underlayer, such as chromium, on the oxidized seed layer, whereby the underlayer exhibits a (200) crystallographic orientation. A magnetic alloy epitaxially grown on the underlayer having a (200) crystallographic orientation exhibits a bicrystal cluster microstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.