Patent ID: 8044380
Filing Date: 2011-10-25
Classification: H01L

Abstract:
1. A nitride semiconductor light emitting device comprising: a first nitride semiconductor layer; an active layer formed above the first nitride semiconductor layer; and a “C (carbon)”-doped second nitride semiconductor layer formed above the active layer, wherein the “C”-doped second nitride semiconductor layer comprises an undoped GaN layer directly contacted with the active layer; a “C”-doped p-GaN layer on the undoped GaN layer; wherein the first nitride semiconductor layer is formed in a super lattice structure of AlGaN/n-GaN or in an n-GaN layer doped with Si and In, and fomed having at least one period; and wherein the first nitride semiconductor layer is formed in the super lattice structure of AlGaN/n-GaN, wherein the super lattice structure of AlGaN/n-GaN has one periodic thickness range of 250˜500 Å.