Patent ID: 6821800
Filing Date: 2004-11-23
Classification: B82Y,H01L,Y10S

Abstract:
A method of manufacturing a semiconductor light-emitting device, the method comprising:forming a first semiconductor layer made of group III-V gallium nitride compound semiconductor doped with impurities of high density and having n-type conduction; laminating a second semiconductor layer on said first semiconductor layer, said second semiconductor layer being made of group III-V gallium nitride compound semiconductor doped with impurities of lower density than said first semiconductor layer and having n-type conduction; laminating a light-emitting layer of superlattice structure on said second semiconductor layer, said light-emitting layer including a plurality of barrier layers of InY1Ga1-Y1N (Y1>0) and a plurality of quantum well layers of InY2Ga1-Y2N (Y2>Y1, Y2>0) alternately laminated with each other; laminating a third semiconductor layer on said light-emitting layer, said third semiconductor layer being made of group III-V gallium nitride compound semiconductor doped with impurities and having p-type conduction, said third semiconductor layer having a broader band gap than said barrier layer of said light-emitting layer; and laminating a fourth semiconductor layer on said third semiconductor layer, said fourth semiconductor layer being made of group III-V gallium nitride compound semiconductor doped with impurities of higher density than said third semiconductor layer and having p-type conduction.