Patent ID: 6737678
Filing Date: 2004-05-18
Classification: B82Y,H01S

Abstract:
A nitride semiconductor device comprising:a substrate that cleaves along a cleavage plane; a nitride semiconductor layer disposed on the substrate, having a cleavage plane crystallographically similar to the cleavage plane of the substrate, comprising a compound containing a group III element and nitrogen and having a cleaved end surface cleaved along the cleavage plane; a cleavage guide groove portion formed in the nitride semiconductor layer for forming the cleaved end surface; and a cavity comprising a stripe-shaped optical waveguide formed in the nitride semiconductor layer and the cleaved end surface of the nitride semiconductor layer, wherein the cleavage guide groove portion extends from a top surface of the nitride semiconductor layer and reaches the substrate, and the cleavage guide groove portion does not extend over a region of the nitride semiconductor layer above the stripe-shaped optical wave guide.