Patent ID: 8093625
Filing Date: 2012-01-10
Classification: H01L

Abstract:
1. A nitride semiconductor light emitting device comprising: a buffer layer having a super-lattice layer deposited on a silicon substrate; a first conductive clad layer on the buffer layer; an active layer on the first conductive clad layer; and a second conductive clad layer on the active layer, wherein the buffer layer comprises: wherein the undoped Gallium nitride semiconductor layer is thicker than a GaN layer of the first AlN/GaN super-lattice layer and a GaN layer of the second AlN/GaN super-lattice layer, wherein a surface area of the undoped Gallium nitride semiconductor layer is substantially equal to a surface area of the first AlN/GaN super-lattice layer or the second AlN/GaN super-lattice layer, and wherein the first conductive clad layer is formed directly on the second AlN/GaN super-lattice layer.