Double Side Polished Sapphire Wafer , Sapphire Substrate 2 Inch 0.43mm Thickness
Double side polished 2inch 0.43mm thickness sapphire wafer C-axis R-axis A-axis m-plane sapphire substrate for GaN customized orientation Al2O3 single crystal wafer ,sapphire thick glass lens for covering,sapphire optical windows
| Item | 2inch dia 50.8mm |
| Crystal | LED Grade Sapphire |
| Sapphire Purity | ≥99.9996% |
| Color | Transparent |
| Orientation | C plane tiled M axis 0.20°±0.1° customized plane also ok |
| Diameter | 50.8±0.1mm |
| Thickness | 430±15um or 100±30um |
| Primary Flat location | A-axis±0.2° or none |
| Flat length | 16.0±1mm or none |
| Front Side Surface | Mirror polished , EPI Ready or double side polished |
| Surface Roughness | Ra<3A |
| Back Side Roughness | Fine ground, Ra=1.0±0.2um |
| TTV | ≤10um |
| LTV | ≤2.5um(8mm*8mm) |
| BOW | ≤- 10um |
| Warp | ≤10um |
Applications
Sapphire Washers, Sapphire Windows, Sapphire Bearings, Sapphire Rods, Sapphire Tubes, Ruby
sapphire wafer, dome sapphire, Sapphire insulation Film, Sapphire ball lens, Sapphire/ruby ball
1. LED Substrates ＆other semiconductor epi-ready substrates
2. Laser Matrix ＆ Optical element appplications
3. Watches ＆ phones camera and other consumer glass surface
4. Machanical parts applications aslike bearing
5. Fingerprint recognition protect glass applications
6. Artificial jewelry
7. Military applications
8. Sapphire blade
9. Sapphire glass slide for germiculture in low temperature
1-12by turn is ruby->sapphire tube->sapphire window--substrates-->sapphire parts
--->sapphire lens ---sapphire rod lens---sapphire rod prism--->watch glass--step lens
---> fan-shaped window lens --optical lens
About Sapphire Feature
| aterial | Sapphire(Al2O3) |
| Density(20°C) Kg/m3 | 3.98×103 |
| Crystal Structure | hexagonal |
| Crystal lattice constant | a=4.785Å c=12.991 Å |
| Mohs hardness | 9 |
| Melting Point | 2045°C |
| Boiling Point | 3000°C |
| Coefficient of Thermal Expansion | α=5.8×10 -6 /K |
| Specific heat | 0.418W.s/g/k |
| Thermal conduction | 25.12W/m/k(@100°C) |
| Refractive Index (nd) | no=1.768 |
| ne=1.76 | |
| dn/dt | 13×10-6/K(@633nm) |
| Tranmission | T≈80%(0.3~5um) |
| Permittivity | 11.5(//c), 9.3(⊥c) |
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc.
(2) If you have your own express account, it's great.If not,we could help you ship them.
Freight is in accordance with the actual settlement.
Q: How to pay?
A: 50％ deposit,50％ before delivery T/T, Paypal, we can provide Secure payment
and Assurance payment .
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 10-30pcs.
(2) For customized products, the MOQ is 25pcs up.
Q: What's the delivery time?
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 or 3 weeks after you place the order.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.