2inch R-axis sapphire wafer for epi-ready test ,sapphire optical
windows, R-axis 2inch sapphire epi-ready substrate
1. Description
Sapphire is one of the hardest materials, and possesses very good
transmission during the range of visible and near IR spectrum.It is
widely used as optical window in infrared and far infrared military
equipments, apparatus and instruments of satellite and space
technology, and navigation and spaceflight, such as night infrared
scope/sight and night vision camera, etc.The sapphire crystal
window is intensively applied in high-tech fields.
Sapphire optical windows are ideal for applications where high
pressure, vacuum, or corrosive atmospheres are a consideration.
Sapphire, a single crystal form of Al2O3, is resistant to attack by
strong acids due to its high dielectric constant. It has high
compressive strength and a high melting point. It is also resistant
to UV radiation darkening.
sapphire application: sapphire optical lens ,sapphire ball,
sapphire bearing ,sapphire led wafer, sapphire watch glass lens.
Specification:
Single crystal Al2O3 99.999％
Orientation: R-axis 0.5°
Diameter:50.8±0.1mm
Thickness :430±15um or 330±15um
Primary flat:16±1mm
OF Orientation flat: Off R to C axis 45°±0.1° C-plane(0001)
Frontside Surface Roughness:Ra＜0.2nm
Backside Surface Roughness: 0.8~1.2um ( Or double side polished,
both side Ra＜0.2nm)
TTV:＜10um BOW:-10~0um WARP:＜10um
Laser Mark Series No. by needs
Package:Vacuum-sealed containers with nitrogen backfill in a class
100 environment
Cleanliness :Free visible contamination
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| TTV(Total Thickness Variation) | | |
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ConductionType Resistivity(300K) | |
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Semi-Insulating(Fe-doped) > 106 Ω·cm |
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| Front Surface: Ra < 0.2 nm (polished) |
Back Surface: 1~3 nm (fine ground); option: < 0.2 nm (polished) |
| Package | Packaged in a class 100 clean room environment, in single wafer
containers, under a nitrogen atmosphere. |
2. QC Standard
3. FAQ:
1. Can you accept OEM?
Yes!.We can manufacture as per your request specification.
2. Can you deliver the goods via our shipping agent?
Yes, we could help you make the delivery using your shipping agent
3. What about your After-sales service?
Yes.We promise that we can change or refund products if there are
any quality problem.
If you need more professional help, please contact us. Our
technical engineers
would like to give advices according to your requirements
