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US 11,894,487 B2Granted
Light emitting device
AssigneeEpistar Corporation
InventorsShih-Kuo Lai, Li-Shen Tang
Life of this patent
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Abstract
A light-emitting device comprises a substrate; a first semiconductor layer formed on the substrate; a first patterned layer formed on the first semiconductor layer; and a second semiconductor layer formed on the first semiconductor layer, wherein the second semiconductor layer comprises a core layer comprising a group III or transition metal material formed along the first patterned layer.
Claims18
A light-emitting device, comprising:
- a substrate;
- a first semiconductor layer formed on the substrate, wherein the first semiconductor layer comprises a plurality of first mesas protruding from the first semiconductor layer, and wherein the first semiconductor layer further comprises a first upper surface and a second upper surface, and the first upper surface is formed on the plurality of first mesas;
- a first patterned layer formed on the plurality of first mesas of the first semiconductor layer;
- and
- a second semiconductor layer formed on the first semiconductor layer, wherein the second semiconductor layer comprises a core layer comprising a group III element or a transition metal material formed along the first patterned layer.
2 more elements
Dependencies are inferred from the claim text.