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US 10,783,917 B1Granted
Recording head with transfer-printed laser diode unit formed of non-self-supporting layers
AssigneeSeagate Technology LLC
InventorsAidan Dominic Goggin, Mark Anthony Gubbins, Paula Frances McElhinney, Roger L. Hipwell, Jr., John Wolf
Life of this patent
Estimating the term…
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.
Claims20
A recording head comprising:
- a substrate;
- a waveguide core deposited over the substrate;
- a near-field transducer at an end of the waveguide core proximate a media-facing surface;
- a magnetic write pole deposited over the waveguide core;
- a laser diode unit comprising one or more non-self-supporting layers of crystalline material region transfer printed below at least the waveguide core;
- and
- an optical coupler configured to receive light from the laser diode unit and couple the light to the waveguide core, the coupled light causing plasmons to be directed to a recording medium via the near-field transducer.
4 more elements
A recording head comprising:
- a substrate;
- a waveguide core deposited above the substrate;
- a near-field transducer at an end of the waveguide core proximate a media-facing surface;
- a magnetic write pole deposited above the wa.veguide core;
- a laser diode unit comprising one or more non-self-supporting layers of crystalline material region transfer printed above the magnetic write pole;
- and
- an optical coupler configured to receive light from the laser diode unit and couple the light to the waveguide core, the coupled light causing plasmons to be directed to a recording medium via the near-field transducer.
4 more elements
A recording head comprising:
- a substrate;
- a laser diode unit comprising one or more non-self-supporting layers of crystalline material region tra.nsfer printed over the substrate;
- a return pole deposited over the substrate such that a substrate parallel plane of the return pole intersects the laser diode unit;
- a waveguide core deposited over the return pole and the laser diode unit;
- a near-field transducer at an end of the waveguide core proximate a media-facing surface;
- a magnetic write pole and coil deposited above the wa.veguide core ;
- and
- an optical coupler configured to receive light from the laser diode unit and couple the light to the waveguide core, the coupled light causing plasmons to be directed to a recording medium via the near-field transducer.
5 more elements
Dependencies are inferred from the claim text.