Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording
US9269480B1 · kind B1 · utility
2Cited by
254References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Apr 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for forming magnetic recording media with improved columnar growth for energy assisted magnetic recording are provided. In one such method, a first sub-layer of a magnetic layer is formed on a substrate, the magnetic layer including a magnetic material and a plurality of non-magnetic segregants, a top surface of the first sub-layer is etched to substantially remove the non-magnetic segregants accumulated on the top surface, and a second sub-layer of the magnetic layer is formed on the first sub-layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.