Silicon (Si) is usually used in the 1.2 - 7um middle wave infrared optical window and the optical filter substrate, with peak transmission at 3 - 5um. The material has good thermal conductivity and Low density which is ideal for use in weight-sensitive applications.
We provide silicon window with high quality scratch/dig, well controlled surface flatness.
Material specification |
|
Crystal structure |
Monocrystalline Silicon |
Purity |
>99.9999% |
Orientation |
<100>
<111> |
Conductivity |
N type (Phosphorous doped)
P type(Boron doped) |
Resistivity |
N type >10 ohm/cm
P type >30 ohm/cm |
Manufacture limits |
|
Diameter |
5mm to 300mm |
Diameter tolerance |
+/-0.05 |
Thickness |
Customized |
Thickness tolerance |
+/-0.05 |
Scratch/Dig |
10/5 |
Flatness |
<1/4 lambda within clear aperature |
Parallelism |
<1 arc minute |
Edge side |
Fine grinding
Felt polished |
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