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PSS Sapphire Wafer Patterned Sapphire Substrate(PSS)

PSS Sapphire Wafer Patterned Sapphire Substrate(PSS) is Nanoscale specific regular microstructure patterns are designed and fabricated on sapphire substrate by growth or etching, so as to control the output light form of LED

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Description

PSS Sapphire Wafer Patterned Sapphire Substrate(PSS)
Patterned Sapphire Substrate(PSS) is to design and fabricate nanoscale specific regular microstructure patterns on sapphire substrate by growth or etching, so as to control the output light form of LED, reduce the differential arrangement defects between Gan grown on sapphire substrate, improve the epitaxial quality, improve the internal quantum efficiency of LED and increase the light extraction efficiency.

Item	2/4/6 inch patterned sapphire substrate
Material Science	Single crystal sapphire with purity ≥ 99.996%
Crystal Orientation	0.2±0.05°
Angular Axis	0±0.1°
Flat Edge Angle	0±0.2°
Diameter	50.80±0.1mm/100.00±0.1mm
Flat Edge Width	16±1.0mm/30±1.0mm
Thickness	430±10μm/650±10μm
Linear Deviation	≤ 3.0μm
Planeness	≤ 5.0μm
Warpage	0~-8.0μm
Front Coarseness	≤ 0.2nm
Back Roughness	0.8≤ Ra≤ 1.2μm

Technical features and advantages:
Advantages of full process processing from cold processing to graphic processing; Large scale mass production capacity.

Product application:
Gallium nitride (GAN) - based light-emitting diodes.
WDQ

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