Patent ID: 9196791
Filing Date: 2015-11-24
Classification: H01L

Abstract:
1. A light emitting device comprising: a substrate; a buffer layer on the substrate, wherein a surface of the buffer layer includes a concavo-convex section; a first conductive layer on the buffer layer; a non-conductive semiconductor layer on the first conductive layer; a second conductive layer on the non-conductive semiconductor layer; an active layer on the second conductive layer; a third conductive semiconductor layer on the active layer; and a transparent layer on the third conductive semiconductor layer, wherein the first conductive layer includes a first conductive semiconductor layer having a first dopant and a prescribed tensile stress and a second conductive semiconductor layer provided on the first conductive semiconductor layer, the second conductive semiconductor layer having a second dopant and a prescribed compressive stress, wherein the first conductive semiconductor layer has a shape corresponding to the concavo-convex section.