Patent ID: 9525106
Filing Date: 2016-12-20
CPC Classification: H01L

Claim Text:
1. A semiconductor light emitting device comprising: an n-type semiconductor layer and a p-type semiconductor layer; an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer; and an electron blocking layer disposed between the active layer and the p-type semiconductor layer and doped with a p-type dopant element, wherein: the electron blocking; layer is formed of AlxGa1-xN, where 0<x≦1, a plurality of first regions blocking overflow of electrons from the active layer to the p-type semiconductor layer and a plurality of second regions formed of InN are alternately disposed within the electron blocking layer, and content of aluminum (Al) of the plurality of first regions changes in a direction from an interface of the electron blocking layer contiguous with the active layer toward an interface of the electron blocking layer contiguous with the p-type semiconductor layer.