Patent ID: 6711192
Filing Date: 2004-03-23
Classification: H01L,H01S

Abstract:
A nitride semiconductor laser device comprising:a ground layer made of group III nitride semiconductor (Alxâ€²Ga1âˆ’xâ€²)1âˆ’yâ€²Inyâ€²N (0&lE;xâ€²&lE;1, 0&lE;yâ€²&lE;1); a laser body including a plurality of crystal layers each made of group III nitride semiconductor (AlxGa1âˆ’x)1âˆ’yInyN (0&lE;x&lE;1, 0&lE;y&lE;1) successively grown on the ground layer, the laser body further including a narrowed current path to provide electric current to a light emitting portion of the crystal layers; a cleavable support substrate bonded after growth of the crystal layers onto a surface of the laser body where the narrowed current path is disposed, wherein the cleavable support substrate has a cleavage plane coinciding with a cleavage plane of the crystal layers of the nitride semiconductor and wherein the cleavable support substrate is made of an electrically conductive material; and at least one bonding film, via which the cleavable support substrate and the laser body are bonded, including a portion of the narrowed current.