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US 8,525,201 B2Granted
Light emitting device and method of manufacturing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-won Lee, Bok-ki Min, Jun-youn Kim, Young-jo Tak, Hyung-su Jeong
Life of this patent
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Abstract
A light emitting device may include a substrate, an n-type clad layer, an active layer, and a p-type clad layer. A concave-convex pattern having a plurality of grooves and a mesa between each of the plurality of grooves may be formed on the substrate, and a reflective layer may be formed on the surfaces of the plurality of grooves or the mesa between each of the plurality of grooves. Therefore, light generated in the active layer may be reflected by the reflective layer, and extracted to an external location.
Claims15
A light emitting device comprising:
- a concave-convex pattern on a substrate, the concave-convex pattern including a plurality of grooves and a mesa between each of the plurality of grooves;
- a first reflective layer on a side surface of each of the plurality of grooves, the first reflective layer exposing a top surface of the mesa of the concave-convex pattern;
- an n-type clad layer on the concave-convex pattern, the n-type clad layer being in contact with the top surface of the mesa of the concave-convex pattern;
- an active layer on the n-type clad layer;
- a p-type clad layer on the active layer;
- a first electrode on a surface of the substrate, the first electrode facing the first reflective layer with the substrate therebetween;
- and
- a second electrode on a surface of the p-type clad layer.
5 more elements
Dependencies are inferred from the claim text.