Patent ID: 7955879
Filing Date: 2011-06-07
Classification: H01L

Abstract:
1. A method of forming an LED semiconductor device comprising: providing an LED on a substrate; providing a first encapsulant material layer on the LED; first annealing the first encapsulant material layer; providing a luminescence conversion material layer on the firstly annealed first encapsulant material layer, wherein the first encapsulant material layer is sufficiently hardened by the first annealing such that the luminescence conversion material layer does not penetrate substantially into the first encapsulant material layer; second annealing the first encapsulant material layer and the luminescence conversion material layer; and selectively removing a portion of the luminescence conversion material layer after providing the luminescence conversion material layer on the firstly annealed first encapsulant material layer, wherein selectively removing removes the portion of the luminescence conversion material layer that is not adhered to the firstly annealed first encapsulant material layer.