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US 2019/0198709 A1Published application
Iii-nitride multi-color on wafer micro-led enabled by tunnel junctions
AssigneeLumileds LLC
InventorsIsaac Harshman Wildeson, Parijat Pramil Deb, Robert Armitage
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Abstract
A device may include a first light emitting diode (LED) on a first surface of a substrate, a first tunnel junction on the first LED a first semiconductor layer on the first tunnel junction, and a conformal dielectric layer on at least a sidewall of the LED and the first surface of the substrate.
Claims20
A device comprising:
- a first light emitting diode (LED) on a first surface of a substrate;
- a first tunnel junction on the first LED;
- a first semiconductor layer on the first tunnel junction;
- and
- a conformal dielectric layer on at least a sidewall of the LED and the first surface of the substrate.
2 more elements
A light emitting diode (LED) array comprising:
- a first pixel and a second pixel on a substrate, the first pixel and the second pixel comprising one or more tunnel junctions on one or more LEDs;
- and
- a first trench between the first pixel and the second pixel, the trench extending to the substrate.
A method comprising:
- forming one or more LEDs and one or more tunnel junctions on a substrate;
- and
- forming a first trench through the one or more tunnel junctions and the one or more LEDs to define a first pixel and a second pixel, the first trench extending to the substrate.
Dependencies are inferred from the claim text.