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Sapphire Wafers

Product Description:
Sapphire is a material of a unique combination of physical, chemical and optical properties, which make it resistant to high temperature, thermal shock, water and sand erosion, and scratching. It is a superior window material for many IR applications from 3µm to 5µm. C-plane sapphire substrates are widely used to grow III-V and II-VI compounds such as GaN for blue LED and laser diodes, while R-plane sapphire substrates are used for the hetero-epitaxial deposition of silicon for microelectronic IC applications.

Quantity:

Product Description: 

Sapphire is a material of a unique combination of physical, chemical and optical properties, which make it resistant to high temperature, thermal shock, water and sand erosion, and scratching. It is a superior window material for many IR applications from 3µm to 5µm. C-plane sapphire substrates are widely used to grow III-V and II-VI compounds such as GaN for blue LED and laser diodes, while R-plane sapphire substrates are used for the hetero-epitaxial deposition of silicon for microelectronic IC applications.

Features: 

All orientations are available,  Wafer size from 2 to 6 inches are available for all typesThin wafer down to 250um for 2 inch, 300um for 4 inch and 300um for 6 inch. We can also produced as customized.  

 

Specification: 

OrientationR-plane, C-plane, A-plane, M-plane ,random orientation/ a specified orientation
Orientation Tolerance± 0.3°
Diameter2 inches, 3 inches, 4 inches, 6 inches, 8 inches or others
Diameter Tolerance0.1mm for 2 inches, 0.2mm for 3 inches, 0.3mm for 4 inches, 0.5mm for 6 inches
Thickness0.25mm, 0.33mm, 0.43mm, 0.65mm, 1mm or others;
Thickness Tolerance25μm
Primary Flat Length16.0±1.0mm for 2 inches, 22.0±1.0mm for 3 inches, 30.0±1.5mm for 4 inches, 50.0±2.0mm for 6 inches
Primary Flat OrientationA-plane (1 1-2 0 ) ± 0.2°;  C-plane (0 0-0 1 ) ± 0.2°,  Projected C-Axis 45 +/- 2°
TTV≤10µm for 2 inches,  ≤15µm for 3 inches,  ≤20µm for 4 inches,  ≤25µm for 6 inches
BOW≤10µm for 2 inches,  ≤15µm for 3 inches,  ≤20µm for 4 inches,  ≤25µm for 6 inches
Front SurfaceEpi-Polished (Ra< 0.3nm for C-plane, 0.5nm for other orientations)
Back SurfaceFine ground (Ra=0.6μm~1.4μm) or Epi-polished


"Quality first, customer first, development and innovation"
Nanjing April Electro-Optics Ltd. founded in 2012, is specialized in high-precision cold processing of crystal materials, with sapphire, quartz and optical glass as raw materials. Core products including window, lens, crystal rod, prism, ball, filter, cylindrical mirror, ball cover, and so forth. 

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