NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE, METHOD OF FABRICATING NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Aug 17, 2012
filing date -
Nov 2, 2011
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Abandoned
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Abstract
A nitride semiconductor light-emitting device includes a support base and a diode structure. The support base has a primary surface of a hexagonal nitride semiconductor. The diode structure is provided on the primary surface of the support base. The diode structure includes a first conductivity type group-III nitride semiconductor layer provided on the primary surface of the support base, a light-emitting layer provided on the first conductivity type group-III nitride semiconductor layer, and a second conductivity type group-III nitride semiconductor layer provided on the light-emitting layer. The light-emitting layer has a multiple quantum well structure including first and second well layers and a barrier layer. The thickness of the barrier layer is 4.5 nm or less. The primary surface of the support base tilts at a tilt angle in the range of 50 to 80 degrees or 130 to 170 degrees from a c-plane of the hexagonal nitride semiconductor.
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