Electrode of light-emitting device
First Claim
1. A light-emitting device, comprising:
- a light-emitting semiconductor stack comprising a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer, a recess comprising a bottom surface exposing the first semiconductor layer, and a mesa comprising an upper surface, wherein the upper surface is a surface of the second semiconductor layer and the bottom surface is a surface of the first semiconductor layer;
a first electrode comprising a first layer formed on the upper surface of the mesa and a second layer formed on the first layer, wherein the second layer is extended to cover the recess;
a second electrode formed on the bottom surface of the recess;
a first insulating layer formed in the recess and on the upper surface of the mesa, comprising an opening exposing the first layer of the first electrode and a passage exposing the second electrode;
a first electrode pad formed on the light-emitting semiconductor stack and electrically connected to the first electrode; and
a second electrode pad formed on the light-emitting semiconductor stack and electrically connected to the second electrode, wherein the first electrode pad and the second electrode pad are formed on the same side of the second semiconductor layer,wherein in view of a first cross-section of the light-emitting device, the second electrode formed under the first electrode pad is covered by the second layer of the first electrode, and in view of a second cross-section of the light-emitting device, the second layer of the first electrode exposes a portion of the second electrode.
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Accused Products
Abstract
A light-emitting device comprises a light-emitting semiconductor stack comprising a plurality of recesses and a mesa, each of the plurality of recesses comprising a bottom surface, and the mesa comprising an upper surface; a first electrode formed on the upper surface of the mesa; a plurality of second electrodes respectively formed on the bottom surface of the plurality of recesses; a first electrode pad formed on the light-emitting semiconductor stack and contacting with the first electrode; a second electrode pad formed on the light-emitting semiconductor stack and contacting with the plurality of second electrode; a first insulating layer comprising a plurality of passages to expose the plurality of second electrodes; and a second insulating layer comprising a plurality of spaces and formed on the first insulating layer, wherein the plurality of spaces is covered by the first electrode pad.
15 Citations
18 Claims
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1. A light-emitting device, comprising:
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a light-emitting semiconductor stack comprising a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer, a recess comprising a bottom surface exposing the first semiconductor layer, and a mesa comprising an upper surface, wherein the upper surface is a surface of the second semiconductor layer and the bottom surface is a surface of the first semiconductor layer; a first electrode comprising a first layer formed on the upper surface of the mesa and a second layer formed on the first layer, wherein the second layer is extended to cover the recess; a second electrode formed on the bottom surface of the recess; a first insulating layer formed in the recess and on the upper surface of the mesa, comprising an opening exposing the first layer of the first electrode and a passage exposing the second electrode; a first electrode pad formed on the light-emitting semiconductor stack and electrically connected to the first electrode; and a second electrode pad formed on the light-emitting semiconductor stack and electrically connected to the second electrode, wherein the first electrode pad and the second electrode pad are formed on the same side of the second semiconductor layer, wherein in view of a first cross-section of the light-emitting device, the second electrode formed under the first electrode pad is covered by the second layer of the first electrode, and in view of a second cross-section of the light-emitting device, the second layer of the first electrode exposes a portion of the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification