Patent ID: 8921887

Claim:
A semiconductor light emitting device comprising: a first semiconductor layer of a first conductivity type; a second semiconductor layer of a second conductivity type; a light emitting layer provided between the first semiconductor layer and the second semiconductor layer; and a first electrode layer having electrical continuity with the first semiconductor layer; a second electrode layer provided on the second semiconductor layer, the second electrode layer including a metal portion and a plurality of apertures, the metal portion having a thickness not less than 10 nanometers and not more than 100 nanometers along a direction from the first semiconductor layer to the second semiconductor layer, the plurality of apertures penetrating the metal portion along the direction, each of the apertures viewed along the direction having equivalent circle diameters of not less than 10 nanometers and not more than 5 micrometers, a conductive member being not provided in each of the apertures, and a Schottky barrier provided between the second semiconductor layer and the metal portion, wherein the second semiconductor layer includes a first portion and a second portion provided between the first portion and the second electrode layer, an impurity concentration of the second portion is not less than 1×10 12 /cubic centimeter and not more than 1×10 18 /cubic centimeter, the metal portion includes at least one of Au and Ag, and a sheet resistance of the metal portion is not more than 10 ohms/square.