Heat-assisted magnetic recording head having a non-uniform air-bearing surface
US10049694B2 · kind B2 · utility
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3References
23Claims
0Family size
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Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Aug 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording head includes a near-field transducer configured to heat one or more portions of a magnetic storage layer to generate a thermal profile in the magnetic storage layer. The recording head includes a write pole configured to generate a magnetization pattern, in the magnetic storage layer, that overlaps with the thermal profile in the magnetic storage layer. The write pole includes a non-uniform surface that faces the magnetic storage layer, the non-uniform surface configured to cause a portion of the magnetization pattern to be approximately linear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.