Patent ID: 9087960
Filing Date: 2015-07-21
Classification: H01L

Abstract:
1. A light emitting diode comprising: a substrate having a surface with a cushion layer thereon with a first area and a second area; a first-type semiconductor layer comprising a first portion and a second portion located in the first area and the second area, respectively; a structural layer disposed on the second area of the cushion layer, comprising: the second portion of the first-type semiconductor layer; a light emitting layer disposed on the second portion of the first-type semiconductor layer; and a second-type semiconductor layer disposed on the light emitting layer, wherein the structural layer is composed of a stacked structure having a trapezoid sidewall and nano columns, the trapezoid sidewall has an inclined surface, and a portion of the nano columns extends from the inclined surface in regular arrangement; a transparent conductive layer disposed on the stacked structure of the structural layer in the second area of the cushion layer; a first contact pad disposed on the first portion of the first-type semiconductor layer in the first area of the cushion layer; and a second contact pad disposed on the transparent conductive layer.