Patent ID: 7476903

Claim:
A semiconductor light-emitting device comprising: a Group-III nitride-based compound semiconductor expressed by Al x Ga y In 1-x-y N (where, 0≦x≦1; 0≦y≦1; 0≦x+y≦1) and including a substrate, an n-type semiconductor layer arranged on the substrate, an active layer arranged on the n-type semiconductor layer, and a p-type semiconductor layer arranged on the active layer; a mesa portion protruding above the active layer; a ZrO 2 film arranged to cover the mesa portion from an inner side along an edge of a top surface to a side surface of the mesa portion so as to expose the top surface of the mesa portion; an Al 2 O 3 film arranged to cover the ZrO 2 film so as to expose the top surface of the mesa portion; and an electrode layer arranged to cover the mesa portion from above the ZrO 2 film and the Al 2 O 3 film and electrically connected to the p-type semiconductor layer; wherein neither of the ZrO 2 film and the Al 2 O 3 film cover a side surface of the active layer below the mesa portion.