Sapphire windows 1.Material:single sapphire 2.Dia:50.8+/-0.1mm 3.Surface Quality:40/20 4.Flatness:1/4 lambda at 633nm

  Sapphire wafer

Worldhawk offers a series wafer with different materials. 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.

Product Description

crystal materials	99.996% high purity monocrystalline AL2O3
wafer surface orientation	C-axis(0001)to M(1-100)or A(11-20)0.2°+/-0.1°
Dia	50.8+/0.1mm	76.2+/-0.25mm	100.0+/-0.2mm	150.0+/-0.5mm
thickness	430+/-25um 330+/-25um	650+/-25um 430+/-25um	650+/-25um 550+/-25um	1000+/-25um
Major Flat	A-axis(11-20)+/-0.2°
Major Flat Length	16.0+/-1.0mm	22.0+/-1.0mm	31.0+/-1.0mm	57.0+/-1.0mm
Front surface	Epi polished, Ra<0.20nm
Back Surface	Fine ground(Ra=1.0um)or Epi-polished,Ra<0.20nm
Edge condition	small protective chamfer
TTV	≤5um	≤5um	≤5um	≤5um
BOW	≤5um	≤7um	≤10um	≤15um
Warp	≤5um	≤7um	≤10um	≤15um
surface quality	Epi-ready
packaging	packaged in class 100 clean room evnvironment, in cassettes of 25pcs or single package ,under in nitrogen atomosphere
Note	R-pane(1-102),A-plane(1 1-20)and M-plane(1-100)are available

Our main products include optical components, laser products, Lenses assembly and other electronics devices, if any other needs, please feel free to contact with us. We will supply our best service for you!