Patent ID: 8624285
Filing Date: 2014-01-07
Classification: B82Y,H01L

Abstract:
1. A light emitting diode, comprising: a first semiconductor layer having a first surface and a second surface opposite to the first surface; an active layer stacked on the second surface of the first semiconductor layer; a second semiconductor layer stacked on the active layer; a first electrode electrically connected with and covering the first surface of the first semiconductor layer; a second electrode electrically connected with the second semiconductor layer; and a plurality of three-dimensional nano-structures located on the second surface of the first semiconductor layer and on the light emitting surface, wherein each of the plurality of three-dimensional nano-structures has a first peak and a second peak aligned side by side, a first groove is defined between the first peak and the second peak, a second groove is defined between each two adjacent three-dimensional nano-structures of the plurality of three-dimensional nano-structures, and a depth of the first groove is less than a depth of the second groove.