Patent ID: 7772610

Claim:
A structure of LED of high cooling efficiency, including: a copper substrate, on which a plurality of indentations are arranged, an insulating layer being arranged on a surface of the copper substrate and on a bottom of the indentation, a set of metallic circuits being arranged on the insulating layer of the copper substrate, an insulating lacquer being arranged on surfaces of the metallic circuit set, where there is no electric connection and no enclosure, a tin layer being arranged on a surface of the insulating layer of the indentation and on surfaces of the metallic circuit set, where there is no insulating lacquer. a set of light-emitting chips, which is die-bonded on the tin layer of the indentation; a set of gold wires, by which the metallic circuit set and the light-emitting chip set are electrically connected; a ringed object, which is arranged on the substrate to enclose the metallic circuit set, the light-emitting chip set, and the gold wires therein; a fluorescent layer, which is arranged within the ringed object and over the surfaces of the metallic circuit set, the light-emitting chip set, and the gold wires; and an epoxy resin layer, which is arranged within the ringed object and over the surfaces of the fluorescent layer.