Patent ID: 8664018
Filing Date: 2014-03-04
Classification: H01L

Abstract:
1. A manufacturing method for an LED package, comprising: providing a substrate, wherein the substrate has two electrodes and a reflector defining a depression located on a top surface of the substrate; locating an LED chip inside the depression and electrically connected to the two electrodes; locating a first luminescent conversion layer on the LED chip, wherein the first luminescent conversion layer comprises one first luminescent conversion element; precipitating the first luminescent conversion element on the bottom of the depression via centrifugation, the first luminescent conversion layer being a mixture comprising a first transparent colloid mixed with the first luminescent conversion element, after the centrifugation, the first luminescent conversion element being precipitated to form a concave camber on the bottom of the depression and the first transparent colloid being centralized in the midst of the first luminescent conversion layer; and locating a second luminescent conversion layer on the first luminescent conversion layer, the second luminescent conversion layer being a mixture comprising a second luminescent conversion element and a second transparent colloid; wherein an excitation efficiency of the second luminescent conversion element is lower than an excitation efficiency of the first luminescent conversion element.