Patent ID: 8202752
Filing Date: 2012-06-19
Classification: H01L,H01S

Abstract:
1. A method for fabricating a semiconductor device, comprising steps of: providing a buffer layer on a substrate; forming a first semiconductor layer on a surface of said buffer layer; doping dopant into said first semiconductor layer to form an intermediate layer on a surface of said first semiconductor layer in an epitaxial process; covering a second semiconductor layer on a surface of said intermediate layer, wherein said step of forming said intermediate layer and said step of covering said second semiconductor layer on said surface of said intermediate layer are regarded as a procedure; and forming a semiconductor light emitting device on said second semiconductor layer; wherein the dopant in said intermediate layer is one of Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Si, Ge, and Sn, or the mixture thereof and wherein a doping concentration of said Mg in said intermediate layer is between 1.0×10 wherein a doping concentration of the mixture of said Mg and said Si in said intermediate layer ranges from 1.0×10