Patent ID: 8278645
Filing Date: 2012-10-02
Classification: H01L

Abstract:
1. A light emitting diode, comprising: a light emitting structure comprising a first semiconductor layer and a second semiconductor layer arranged on bilateral sides of said light emitting structure; a buffer layer arranged on said first semiconductor layer, wherein said buffer layer includes a plurality of dielectric material structures and a plurality of metal material structures alternate with each other, a cross sectional view of each dielectric material structure being trapezoid and comprising two inclined side surfaces which are inclined toward each other along a direction away from the light emitting structure; and a reflective layer arranged on said buffer layer to reflect a transmitting light by said dielectric material array, the reflective layer comprising a portion extending into said buffer layer, and positioned between two neighboring dielectric material structure and metal material structure, a cross sectional view of said portion being triangular.