Light-emitting devices with textured active layer
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United States of America Patent
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Oct 30, 2012
Grant Date -
Sep 15, 2011
app pub date -
Mar 9, 2010
filing date -
Mar 9, 2010
priority date (Note) -
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Abstract
A device includes a textured substrate having a trench extending from a top surface of the textured substrate into the textured substrate, wherein the trench comprises a sidewall and a bottom. A light-emitting device (LED) includes an active layer over the textured substrate. The active layer has a first portion parallel to the sidewall of the trench and a second portion parallel to the bottom of the trench.
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