Recording head with transfer-printed laser diode unit formed of non-self-supporting layers
US10783917B1 · kind B1 · utility
5Cited by
85References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2019 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording head includes a substrate, a read transducer, a waveguide core, and a near-field transducer at an end of the waveguide core proximate a media-facing surface. The recording head includes a magnetic write pole and coil. A laser diode unit with one or more non-self-supporting layers of crystalline material region is transfer printed between layers of the recording head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.