Light emitting device and method of fabricating the same
First Claim
1. A light emitting device comprising:
- a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer disposed between the first and second conductive type semiconductor layers, the first conductive type semiconductor layer having an upper surface with a partially exposed region;
a transparent electrode disposed on the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer;
a first insulation layer covering the light emitting structure and the transparent electrode, and including a first opening and a second opening exposing the partially exposed region of the upper surface of the first conductive type semiconductor layer and a portion of the transparent electrode, respectively;
a current blocking layer disposed a region of the second conductive type semiconductor layer;
a first metal layer forming ohmic contact with the first conductive type semiconductor layer through the first opening and extending from the first opening to a region on the insulation layer above the upper surface of the second conductive type semiconductor layer;
a second metal layer contacting the transparent electrode through the second opening;
a first electrode electrically connected to the first conductive type semiconductor layer; and
a second electrode electrically connected to the transparent electrode;
wherein the first metal layer and the second metal layer are separated from each other.
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Accused Products
Abstract
A light emitting device and a method of fabricating the same. The light emitting device includes: a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer, an active layer, and a partially exposed region of an upper surface of the first conductive type semiconductor layer; a transparent electrode disposed on the second conductive type semiconductor layer; a first insulation layer including a first opening and a second opening; a metal layer at least partially covering the first insulation layer; a first electrode electrically connected to the first conductive type semiconductor layer; and a second electrode electrically connected to the transparent electrode.
6 Citations
21 Claims
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1. A light emitting device comprising:
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a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer disposed between the first and second conductive type semiconductor layers, the first conductive type semiconductor layer having an upper surface with a partially exposed region; a transparent electrode disposed on the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer; a first insulation layer covering the light emitting structure and the transparent electrode, and including a first opening and a second opening exposing the partially exposed region of the upper surface of the first conductive type semiconductor layer and a portion of the transparent electrode, respectively; a current blocking layer disposed a region of the second conductive type semiconductor layer; a first metal layer forming ohmic contact with the first conductive type semiconductor layer through the first opening and extending from the first opening to a region on the insulation layer above the upper surface of the second conductive type semiconductor layer; a second metal layer contacting the transparent electrode through the second opening; a first electrode electrically connected to the first conductive type semiconductor layer; and a second electrode electrically connected to the transparent electrode; wherein the first metal layer and the second metal layer are separated from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A light emitting device comprising:
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a light emitting structure including a first conductive type semiconductor layer, an active layer formed over the first conductive type semiconductor layer, and a second conductive type semiconductor layer formed over the active layer, wherein the light emitting structure has an opening passing through the active layer and the second conductive type semiconductor layer and having an inclined side surface; a current blocking layer disposed on a first region of the second conductive type semiconductor layer; a transparent layer formed over a second region of the second conductive type semiconductor layer; a first metal layer disposed over the light emitting structure and connected to the first electrode; a second metal layer disposed over the light emitting structure and connected to the second electrode; a first electrode formed over the transparent layer and electrically connected to the first conductive type semiconductor layer through the opening; and a second electrode formed over the transparent layer and electrically connected to the transparent layer. - View Dependent Claims (17, 18)
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19. A light emitting device comprising:
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a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer disposed between the first and second conductive type semiconductor layers, the first conductive type semiconductor layer having an upper surface with a partially exposed region; a transparent electrode disposed on the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer; a first insulation layer covering the light emitting structure and the transparent electrode, and including a first opening and a second opening exposing the partially exposed region of the upper surface of the first conductive type semiconductor layer and a portion of the transparent electrode, respectively; a current blocking layer disposed a region of the second conductive type semiconductor layer; a metal layer at least partially covering the first insulation layer and including a portion disposed above an upper surface of the second conductive type semiconductor layer; a first electrode electrically connected to the first conductive type semiconductor layer; and a second electrode electrically connected to the transparent electrode; a second insulation layer covering the metal layer and including a third opening exposing a region corresponding to the first opening, wherein the first electrode is disposed on the second insulation layer.
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20. A light emitting device comprising:
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a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer disposed between the first and second conductive type semiconductor layers, the first conductive type semiconductor layer having an upper surface with a partially exposed region; a transparent electrode disposed on the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer; a first insulation layer covering the light emitting structure and the transparent electrode, and including a first opening and a second opening exposing the partially exposed region of the upper surface of the first conductive type semiconductor layer and a portion of the transparent electrode, respectively; a current blocking layer disposed a region of the second conductive type semiconductor layer; a metal layer at least partially covering the first insulation layer and including a portion disposed above an upper surface of the second conductive type semiconductor layer; a first electrode electrically connected to the first conductive type semiconductor layer; and a second electrode electrically connected to the transparent electrode; wherein the partially exposed region of the upper surface of the first conductive type semiconductor layer is formed in a hole shape passing through the second conductive type semiconductor layer and the active layer, and the light emitting structure includes at least one hole passing through the second conductive type semiconductor layer and the active layer.
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21. A light emitting device comprising:
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a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer disposed between the first and second conductive type semiconductor layers, the first conductive type semiconductor layer having an upper surface with a partially exposed region; a transparent electrode disposed on the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer; a first insulation layer covering the light emitting structure and the transparent electrode, and including a first opening and a second opening exposing the partially exposed region of the upper surface of the first conductive type semiconductor layer and a portion of the transparent electrode, respectively; a current blocking layer disposed a region of the second conductive type semiconductor layer; a metal layer at least partially covering the first insulation layer and including a portion disposed above an upper surface of the second conductive type semiconductor layer; a first electrode electrically connected to the first conductive type semiconductor layer; and a second electrode electrically connected to the transparent electrode; wherein the light emitting structure includes at least one mesa including the second conductive type semiconductor layer and the active layer, and the at least one mesa is not formed over the partially exposed region of the upper surface of the first conductive type semiconductor layer.
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Specification