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Light-emitting device that provides efficient and bright luminescence

  • US 9,299,893 B2
  • Filed: 01/08/2014
  • Issued: 03/29/2016
  • Est. Priority Date: 01/10/2013
  • Status: Active Grant
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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