Light-emitting device that provides efficient and bright luminescence
First Claim
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1. A light-emitting device, comprising:
- a light-emitting semiconductor stack comprising a plurality of recesses and a mesa, wherein each of the plurality of recesses comprises a bottom, and the mesa comprises an upper surface;
a first electrode comprising a first layer and a second layer, wherein the first layer comprises a first conductive material and is formed on the upper surface of the mesa, and the second layer comprises a second conductive material and is on the first layer;
a plurality of second electrodes respectively formed on the bottom of each of the plurality of recesses;
a first insulating layer formed in each of the plurality of recesses and on a part of the upper surface of the mesa, wherein the first insulating layer comprises a plurality of passages to expose the plurality of second electrodes;
a first electrode pad formed on the first insulating layer and contacting the first electrode; and
a second electrode pad formed on the plurality of passages to contact the plurality of second electrodes.
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Abstract
A light-emitting device comprises: a light-emitting semiconductor stack comprising a recess and a mesa, wherein the recess comprises a bottom and the mesa comprises an upper surface; a first insulating layer in the recess and on a part of the upper surface of the mesa; and a first electrode comprising a first layer and a second layer, wherein the first layer comprises a first conductive material and is on another part of the upper surface of the mesa, and the second layer comprises a second conductive material and is on the first layer.
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Citations
19 Claims
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1. A light-emitting device, comprising:
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a light-emitting semiconductor stack comprising a plurality of recesses and a mesa, wherein each of the plurality of recesses comprises a bottom, and the mesa comprises an upper surface; a first electrode comprising a first layer and a second layer, wherein the first layer comprises a first conductive material and is formed on the upper surface of the mesa, and the second layer comprises a second conductive material and is on the first layer; a plurality of second electrodes respectively formed on the bottom of each of the plurality of recesses; a first insulating layer formed in each of the plurality of recesses and on a part of the upper surface of the mesa, wherein the first insulating layer comprises a plurality of passages to expose the plurality of second electrodes; a first electrode pad formed on the first insulating layer and contacting the first electrode; and a second electrode pad formed on the plurality of passages to contact the plurality of second electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A light-emitting device, comprising:
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a light-emitting semiconductor stack comprising a plurality of recesses and a mesa, wherein each of the plurality of recesses comprises a bottom surface, and the mesa comprises an upper surface; a first electrode comprising a first layer and a second layer, wherein the first layer comprises a first conductive material and the second layer comprises a second conductive material different from the first conductive material; a plurality of second electrodes respectively formed on the bottom surface of the plurality of recesses; a first insulating layer formed in each of the plurality of recesses and on a part of the upper surface of the mesa, wherein the first insulating layer comprises a plurality of passages to expose the plurality of second electrodes; a second insulating layer formed on the first insulating layer at a position corresponding to a position of the first insulating layer; a first electrode pad formed on the second insulating layer and contacting the first electrode; and a second electrode pad formed on the plurality of passages and contacting the plurality of second electrodes.
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Specification