Patent ID: 9087965
Filing Date: 2015-07-21
Classification: H01L

Abstract:
1. An optoelectronic element, comprising: a semiconductor stack layer comprising a first surface and a second surface; a first transparent conductive oxide layer formed on the first surface of the semiconductor stack layer, wherein the first transparent conductive oxide layer comprises at least an opening exposing the first surface of the semiconductor stack layer; and a second transparent conductive oxide layer filled into the opening and covering the first transparent conductive oxide layer; wherein the first transparent conductive oxide layer and the second transparent conductive oxide layer are comprised of a material selected from the group consisting of indium tin oxide (ITO), indium oxide (InO), tin oxide (SnO), cadmium tin oxide (CTO), aluminum tin oxide (ATO), aluminum zinc oxide (AZO), and zinc oxide (ZnO), and the first transparent conductive oxide layer and the second transparent conductive oxide layer have the same constituent material with different refractive indexes.