Patent ID: 6700139
Filing Date: 2004-03-02
Classification: H01L

Abstract:
A GaP-base semiconductor light emitting device comprising a GaP-base semiconductor substrate internally having a p-n junction formed between a p-type layer and n-type layer, and electrodes for applying drive voltage for light emission to the semiconductor substrate, whereina first main surface, which is defined as a main surface on the side of the p-type layer of the semiconductor substrate, and side surface thereof have a form of rough surface which comprises a collective of outwardly-swelling convex curved surfaces, a second main surface, which is defined as a main surface on the side of the n-type layer, has a form of specular surface comprising a collective of specular concave curved surfaces, each of which swells inwardly into the semiconductor substrate, and the concave curved surface has a diameter of curvature of 5 &mgr;m to 150 &mgr;m, and an inward depth of 0.5 &mgr;m to 15 &mgr;m.