SEMICONDUCTOR LIGHT EMITTING DEVICE
First Claim
1. A semiconductor light emitting device comprising at least one concave on alight extraction surface opposite to a surface on which a semiconductor stack comprising a light emitting layer between a n-type semiconductor layer and a p-type semiconductor layer is mounted,wherein the concave has not less than two slopes each having a different slope angle in a direction that a diameter of the concave becomes narrower toward a bottom of the concave from an opening of the concave,wherein a slope having a gentle slope angle is provided with irregularities and a slope having a steep slope angle is a flat surface.
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Accused Products
Abstract
A semiconductor light emitting device which includes at least one concave on a light extraction surface opposite to a surface on which a semiconductor stack comprising a light emitting layer between a n-type semiconductor layer and a p-type semiconductor layer is mounted. The concave has not less than two slopes each having a different slope angle in a direction that a diameter of the concave becomes narrower toward a bottom of the concave from an opening of the concave and a slope having a gentle slope angle is provided with irregularities and a slope having a steep slope angle is a flat surface.
67 Citations
12 Claims
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1. A semiconductor light emitting device comprising at least one concave on alight extraction surface opposite to a surface on which a semiconductor stack comprising a light emitting layer between a n-type semiconductor layer and a p-type semiconductor layer is mounted,
wherein the concave has not less than two slopes each having a different slope angle in a direction that a diameter of the concave becomes narrower toward a bottom of the concave from an opening of the concave, wherein a slope having a gentle slope angle is provided with irregularities and a slope having a steep slope angle is a flat surface.
Specification