4'' Sapphire Wafer, 650um Thickness, Single Polish C plane

 LED Sapphire Wafer   Sapphire is a hard crystal,it widely been used for watch and mobilephone, Beauty equipment ,lasers,LED, and so on.    

Material	Sapphire(Al2O3)
Density(20°C) Kg/m3	3.98×103
Crystal Structure	hexagonal
Crystal lattice constant	a=4.785Å c=12.991 Å
Mohs hardness	9
Melting Point	2045°C
Boiling Point	3000°C
Coefficient of Thermal Expansion	α=5.8×10 -6 /K
Specific heat	0.418W.s/g/k
Thermal conduction	25.12W/m/k(@100°C)
Refractive Index (nd)	no=1.768
	ne=1.76
dn/dt	13×10-6/K(@633nm)
Tranmission	T≈80%(0.3~5um)
Permittivity	11.5(//c), 9.3(⊥c)

     
Sapphire is a hard crystal,it widely been used for watch and mobilephone, Beauty equipment ,lasers,LED, and so on.Sunday can make One face or two face be polished sapphire wafers.       Specifications:   Material: High purity,Al2O3,Sapphire,≥ 99.995%, High Purity   Dia.: 1'',2'',3'',4'',5'',6'' or customer-made   Thickness: 0.1mm,0.2mm0.25mm,0.3mm,0.43mm,0.65mm,1mm or other on request.   Thickness tolerance:+/-25um   Orientation: A-plane, C-plane ,R-plane, M-plane,free.   Orientation Flat:16mm,30mm or customer-made.   Edge chamfer: Rounded chamfer.   BOW: -15um<0um   TTB<0.25um-<5um   Package: Clean,Sealed Package.
Manufacture               Competitive Advantages Well and High Quality Control ,
New Product ,
Customer's Design and Logo are Welcome ,
Competitive Prices ,
In a Variety of Design ,
Small Order Acceptable              Welcome your cooperation!       Contact     Changchun Sunday Optoelectronics Co.,ltd No9576 Donghuan Road, Changchun, 130033,China TEL:+86-431-81323204   FAX: +86-431-81323204 Website: www.sunday-optics.com