Patent ID: 8093608

Claim:
A semiconductor light-emitting device comprising: a substrate; an n-type semiconductor layer formed on the substrate; an active layer laminated on the n-type semiconductor layer and capable of emitting a light; a p-type semiconductor layer laminated on the active layer; an n-electrode which is disposed on a lower surface of the semiconductor substrate or on the n-type semiconductor layer and spaced away from the active layer and p-type semiconductor layer; and a p-electrode which is disposed on the p-type semiconductor layer and includes a dot-like nickel oxide layer in direct contact with the p-type semiconductor layer and a Ag layer formed on the dot-like nickel oxide layer, wherein the dot-like nickel oxide layer is interposed between the p-type semiconductor layer and the Ag layer, and the light emitted from the active layer is extracted externally from the substrate side.