III-Nitride Semiconductor Light Emitting Device
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United States of America Patent
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app pub date -
Dec 28, 2009
filing date -
Oct 24, 2008
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Abstract
The present disclosure relates to a III-nitride semiconductor light-emitting device including a substrate, a plurality of III-nitride semiconductor layers including a first nitride semiconductor layer formed over the substrate and having a first conductivity type, a second nitride semiconductor layer formed over the first nitride semiconductor layer and having a second conductivity type different from the first conductivity type, and an active layer disposed between the first nitride semiconductor layer and the second nitride semiconductor layer and generating light by recombination of electrons and holes, and an opening formed along the plurality of III-nitride semiconductor layers from the substrate, and including a first scattering surface scattering the light generated in the active layer and a second scattering surface having a different slope from that of the first scattering surface.
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