Patent ID: 9029883
Filing Date: 2015-05-12
Classification: F21K,H01L

Abstract:
1. An LED package structure with concave area for positioning heat-conducting substance, comprising: a substrate unit having a substrate body, at least one concave space formed on a top surface of the substrate body, a plurality of positive pads exposed on the top surface of the substrate body and a plurality of negative pads exposed on the top surface of the substrate body; a heat-conducting adhesive unit having at least one heat-conducting adhesive layer positioned in the at least one concave space of the substrate unit; a light-emitting unit having a plurality of LED chips disposed on the heat-conducting adhesive layer and received in the at least one concave space, wherein each LED chip has a positive electrode and a negative electrode; a conductive unit having a plurality of wires, wherein every two wires are respectively electrically connected between the positive electrode of each LED chip and each positive pad and between the negative electrode of each LED chip and each negative pad; a package unit having a translucent package resin body disposed on the top surface of the substrate body in order to cover the LED chips and the wires; and a Ni/Pd/Au alloy disposed between the substrate body and the heat-conducting adhesive layer, wherein the LED chips are disposed over the Ni/Pd/Au alloy by the heat-conducting adhesive layer.