SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Jun 8, 2017
app pub date -
Dec 1, 2016
filing date -
Dec 4, 2015
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Abstract
The purpose of the present invention is to provide a semiconductor light-emitting device having good life characteristics and higher light extraction efficiency than conventional devices. This semiconductor light-emitting device includes a substrate; semiconductor layers including a first semiconductor layer, an active layer, and a second semiconductor layer; a first electrode; and a second electrode. The opposite surface of the first semiconductor layer from the active layer comprises a smooth surface portion and a roughened surface portion, the smooth surface portion is provided in a region where the first electrode is formed, the roughened surface portion is provided at least in a part of a region where the first electrode is not formed, and the second semiconductor layer and the second electrode are in contact with each other at a position outside an outer edge of the first electrode.
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