Patent ID: 6821807
Filing Date: 2004-11-23
Classification: H01L,H01S

Abstract:
A method of manufacturing a nitride-based semiconductor device, comprising the steps of:growing a buffer layer of AlXGa1XN (&agr;&lE;X&lE;1) on a substrate at a growth rate in the range from 25 Ã¥/sec to 42 Ã¥/sec; and growing a nitride-based semiconductor layer including an active device region on said buffer layer and made of AlaBbIncTldGa1âˆ’aâˆ’bâˆ’câˆ’dN (0&lE;a<1, 0&lE;b&lE;1, 0&lE;c<1, 0&lE;d<1, a+b+c+d<1) on said buffer layer, wherein said step of growing the buffer layer comprises growing said buffer layer to have a film thickness in the range from 50 Ã¥ to 300 Ã¥.