EPITAXIAL GROWTH SUBSTRATE AND LIGHT-EMITTING ELEMENT USING SAME
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United States of America Patent
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Sep 26, 2016
filing date -
Mar 26, 2014
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Abstract
An epitaxial growth substrate includes a base member, and a concave-convex pattern having a plurality of concavities and a plurality of convexities and formed on the base member, wherein: each of the plurality of convexities has an elongated shape which extends while winding (waving) in a plane view; and the plurality of convexities in the concave-convex pattern have extending directions, bending directions and lengths which are non-uniform among the plurality of convexities. There are provided an epitaxial growth substrate which can be produced efficiently and which is capable of improving the light-emitting efficiency of a light-emitting element; and a light-emitting element using the epitaxial growth substrate.
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