Semiconductor light emitting device and method of fabricating the same
First Claim
1. A semiconductor light emitting device comprising:
- a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer;
a reflective electrode layer under the light emitting structure;
an outer protection layer disposed on an outer of the reflective electrode layer;
a conductive support substrate under the reflective electrode layer; and
a first electrode on the first conductive type semiconductor layer,wherein the light emitting structure includes an outer groove formed at an outer area of the light emitting structure,wherein a thickness of an outmost area of the light emitting structure is smaller than a thickness of a center area of the light emitting structure,wherein the first conductive type semiconductor layer includes an AlGaN layer and the second conductive type semiconductor layer includes an AlGaN layer, andwherein the outer protection layer is insulated from the conductive support substrate or the reflective electrode layer.
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Abstract
A semiconductor light emitting device includes: a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and a first electrode on the first conductive type semiconductor layer, wherein the light emitting structure includes an outer groove formed at an outer area of the light emitting structure, wherein a thickness of an outmost area of the light emitting structure is smaller than a thickness of an center area of the light emitting structure, and wherein the first conductive type semiconductor layer includes AlGaN layer and the second conductive type semiconductor layer includes AlGaN layer.
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Citations
20 Claims
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1. A semiconductor light emitting device comprising:
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a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a reflective electrode layer under the light emitting structure; an outer protection layer disposed on an outer of the reflective electrode layer; a conductive support substrate under the reflective electrode layer; and a first electrode on the first conductive type semiconductor layer, wherein the light emitting structure includes an outer groove formed at an outer area of the light emitting structure, wherein a thickness of an outmost area of the light emitting structure is smaller than a thickness of a center area of the light emitting structure, wherein the first conductive type semiconductor layer includes an AlGaN layer and the second conductive type semiconductor layer includes an AlGaN layer, and wherein the outer protection layer is insulated from the conductive support substrate or the reflective electrode layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A semiconductor light emitting device comprising:
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a light emitting structure comprising an n-type semiconductor layer, a p-type semiconductor layer, and an active layer between the n-type semiconductor layer and the p-type semiconductor layer; a first electrode on the n-type semiconductor layer; an electrode layer under the p-type semiconductor layer; a protection layer disposed on an outer of the electrode layer; and a support substrate under the electrode layer, wherein the light emitting structure includes an outer groove formed at an outer area of the light emitting structure, wherein a thickness of an outmost area of the light emitting structure is smaller than a thickness of a center area of the light emitting structure, wherein the n-type semiconductor layer includes an n-type AlGaN layer and the p-type semiconductor layer includes a p-type AlGaN layer, wherein the electrode layer includes a reflective material, and wherein the protection layer comprises at least one of GaN, InN, AlN, InGaN, AlGaN, InAlGaN, and AlInN, and is doped with n-type dopants, p-type dopants or is undoped. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A semiconductor light emitting device comprising:
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a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a reflective electrode layer under the light emitting structure; an outer protection layer disposed on an outer of the reflective electrode layer; a conductive support substrate under the reflective electrode layer; and a first electrode on the first conductive type semiconductor layer, wherein the light emitting structure includes an outer groove formed at an outer area of the light emitting structure, wherein a thickness of an outmost area of the light emitting structure is smaller than a thickness of a center area of the light emitting structure, wherein the first conductive type semiconductor layer includes an AlGaN layer and the second conductive type semiconductor layer includes an AlGaN layer, and wherein the outer protection layer is formed of the same material as the second conductive type semiconductor layer. - View Dependent Claims (19, 20)
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Specification