Patent ID: 6806507
Filing Date: 2004-10-19
Classification: B82Y,H01L,H01S

Abstract:
A semiconductor light emitting device comprising.a substrate; an n-type layer provided on the substrate and made of a nitride semiconductor material; a multiple quantum well structure active layer including a plurality of well layers each made of InxGa(1âˆ’xâˆ’y)AlyN(0&lE;x, 0&lE;y, x+y<1) and a plurality of barrier layers each glade of InsGa(1âˆ’sâˆ’t)AltN(0&lE;s, 0&lE;t, s+t<1), the multiple quantum well structure active layer being provided on then-type layer, and a p-type layer provided on the multiple quantum well structure active layer and made of a nitride semiconductor material, wherein the p-type layer contains hydrogen, and the hydrogen concentration of the p-type layer is greater than or equal to about 1Ã—1016 atoms/cm3 and less than or equal to about 1Ã—1019 atoms/cm3, and the p-type layer contains Mg and the Mg concentration of the p-type layer is greater than or equal to about 4Ã—1019 atoms/cm3 and less than or equal to about 1Ã—1021 atoms/cm3.