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US 11,120,830 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
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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 method comprising:
- transfer printing a laser diode unit onto a substrate used to form a recording head;
- depositing at least one of a read transducer and part of a write transducer over the laser diode unit;
- and
- forming a light coupler between the laser diode unit and a waveguide core of the write transducer.
1 more element
A method, comprising
- transfer printing a laser diode unit onto a substrate used to form a recording head;
- depositing, in order, a read transducer and a write transducer over the laser diode;
- forming a down-track light coupler between the laser diode unit and a waveguide core of the write transducer.
A method comprising:
- depositing, in order on a substrate, a read transducer and a return pole of a write transducer;
- transfer printing a laser diode unit over the return pole;
- depositing a waveguide core of the write transducer over the laser diode unit;
- and
- forming a light coupler between the laser diode unit and the waveguide core.
2 more elements
Dependencies are inferred from the claim text.