Patent ID: 7705364
Filing Date: 2010-04-27
Classification: B82Y,H01L,H01S

Abstract:
1. A nitride semiconductor light emitting device comprising: an n-nitride semiconductor layer; an active layer of multi-quantum well structure formed on the n-nitride semiconductor layer, and having three or more quantum well layers and a plurality of quantum barrier layers; and a p-nitride semiconductor layer formed on the active layer, wherein one of the three or more quantum well layers adjacent to the n-nitride semiconductor layer has an energy band gap greater than those of another one of the three or more quantum well layers adjacent to the p-nitride semiconductor layer, and one of the three or more of quantum well layers proximate to the n-nitride semiconductor layer has a smaller thickness than another one of the three or more quantum well layers less proximate to the n-nitride semiconductor layer.