Structures and methods for templated growth of high areal density heat assisted magnetic recording media
US10347281B2 · kind B2 · utility
4Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | May 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods are disclosed for increasing areal density in Heat Assisted Magnetic Recording (HAMR) data storage systems by controlling the media layer grain size, grain size distribution, and pitch via templating techniques that are compatible with the high temperature HAMR media deposition. Embodiments include using current HAMR media seed layers as well as additionally introduced interlayers for the templating process. Topographic as well as chemical templating methods are disclosed that may employ nanoimprint technology or nanoparticle self-assembly among other patterning techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.