Patent ID: 8101964

Claim:
A semiconductor light-emitting element comprising a crystal substrate, an electrode layer provided on one surface of said substrate, a semiconductor layer comprising an n-type semiconductor layer, an active layer and a p-type semiconductor layer superposed in the order on the other surface of said substrate, and a metal electrode layer which is provided on said semiconductor layer and which has a thickness in a range of 10 nm to 200 nm; wherein said metal electrode layer comprises: a metal part so continuous that any pair of point-positions in said part is continuously connected without breaks, and plural openings which penetrate through said metal electrode layer and which have an average opening diameter of 10 nm to ⅓ of a wavelength of light emitted from said active layer, under the condition that said metal part in 90% or more of the whole area of said metal electrode layer has a structure in which a distance over a region of said metal part between any two openings does not exceed ⅓ of said wavelength of light and wherein said distance between any two openings extends linearly in a straight line.