Coating a near field transducer with a dielectric material from magnetic recording medium
US10614850B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2019 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Mar 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for coating a near field transducer in a dielectric material are described. In one embodiment, the method may include forming a liquid solution comprising at least a first dielectric and a disk surface lubricant, forming a coating of the liquid solution on an outer surface of a storage medium based at least in part on dipping the storage medium in the liquid solution, and accumulating a first set of molecules of the first dielectric on a near field transducer (NFT) of a HAMR head based at least in part on evaporating a first portion of the first dielectric in the coating by performing a first HAMR writing operation that shines a laser on the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.