Patent ID: 8900801
Filing Date: 2014-12-02
Classification: G03F,H01L

Abstract:
1. A method for producing a light emitting diode device, comprising a stack of layers comprising a light producing layer the light producing layer not being the top or bottom layer of the stack, the method comprising: providing a light emitting diode device comprising a stack of layers, the stack of layers comprising a light producing layer, wherein the light producing layer is not a top layer or a bottom layer of the stack; and subjecting the top layer or the bottom layer of the stack to a texturization, whereby light extraction efficiency of the LED is enhanced, wherein the texturization comprises producing, on a top surface or on a bottom surface of the stack a plurality of surface features, the surface features being arranged according to an irregular pattern defined by starting from: wherein an amplitude of the deviation is selected according to a predefined statistical distribution.