LIGHT-EMITTING DEVICE
First Claim
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1. A light-emitting device comprising:
- a permanent substrate;
a light-emitting stack on the permanent substrate; and
a semiconductor window layer comprising AlGaInP series material disposed between the permanent substrate and the light-emitting stack;
wherein the light-emitting stack comprises a first conductive type semiconductor layer on the semiconductor window layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer and an active structure between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and
wherein the active structure comprises barrier layers and well layers, and each of the well layers disposed between two of the barrier layers, and the barrier layer closest to the first conductive type semiconductor layer and the barrier layer closest to the second conductive type semiconductor layer do not comprise phosphorus, while the rest of the barrier layers comprise phosphorus.
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Abstract
The present disclosure provides a light-emitting device. The light-emitting device includes a substrate, a light-emitting stack on the substrate, and a semiconductor window layer comprising AlGaInP series material disposed between the substrate and the light-emitting stack.
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Citations
20 Claims
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1. A light-emitting device comprising:
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a permanent substrate; a light-emitting stack on the permanent substrate; and a semiconductor window layer comprising AlGaInP series material disposed between the permanent substrate and the light-emitting stack; wherein the light-emitting stack comprises a first conductive type semiconductor layer on the semiconductor window layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer and an active structure between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and wherein the active structure comprises barrier layers and well layers, and each of the well layers disposed between two of the barrier layers, and the barrier layer closest to the first conductive type semiconductor layer and the barrier layer closest to the second conductive type semiconductor layer do not comprise phosphorus, while the rest of the barrier layers comprise phosphorus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A light-emitting device comprising:
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a permanent substrate; a light-emitting stack emitted infrared light on the permanent substrate, wherein a wavelength of the infrared light is larger than 900 nm; a semiconductor window layer comprising AlGaInP series material disposed between the permanent substrate and the light-emitting stack; and a patterned electrode on the light-emitting stack, and a pattern of the patterned electrode is mesh or circles from a top view of the light-emitting device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification