Patent ID: 9202969
Filing Date: 2015-12-01
Classification: H01L

Abstract:
1. A semiconductor light emitting device, comprising: an n-type semiconductor layer; an active layer disposed on the n-type semiconductor layer; a p-type semiconductor layer disposed on the active layer; and a superlattice layer disposed between the active layer and the p-type semiconductor layer, wherein the superlattice layer includes a plurality of alternately stacked nitride layers including In wherein the superlattice layer consists of a first region and a second region disposed on the first region, the first region contains the p-type dopant, a concentration of which increases in a direction toward the p-type semiconductor layer in the entire first region, and the second region contains the p-type dopant, a concentration of which decreases in a direction toward the p-type semiconductor layer in the entire second region, and wherein the p-type semiconductor layer contacts the superlattice layer.