|Item||8-inch C-plane(0001) 1300μm Sapphire Wafers|
|Crystal Materials||99,999%, High Purity, Monocrystalline Al2O3|
|Orientation||Cplane (0001)+/- 0.1° or Cplane off Mplane0.2+/- 0.1°|
|Thickness||1300,1500 μm +/- 25 μm|
|Front surface||Epi-polished, Ra < 0.2 nm (by AFM)|
|Back surface||Epi-polished, Ra < 0.2 nm (by AFM)||Fine ground, Ra = 0.8 μm to 1.2 μm|
|TTV||< 25 μm|
|BOW||< 25 μm|
|WARP||< 25 μm|
|Cleaning||Class 100 cleanroom cleaning and vacuum packaging,|
|Packaging||25 pieces in one cassette packaging or single piece packaging.|
The main application of optical sapphire is large aperture windows, viewports, illuminators for common-aperture optical systems (visible+IR) what make sapphire the top actual material due to its optical and mechanical properties.
Sapphire products are used in many fields as optical details (windows, plates, light guides and lenses, especially sapphire plane-parallel plates - windows, optical high-temperature substrates, exact mechanics details, bulbs of high pressure lamps and so on.