Electrochemical etching of magnetic recording layer
US8492009B1 · kind B1 · utility
73Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Aug 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/855
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of fabricating a perpendicular magnetic recording disk is described. The method may include providing a magnetic recording layer disposed above a substrate with a plurality of intermediate layers disposed there between and electrochemically etching the magnetic recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.