Φ1'' to 8'' Sapphire Wafer for High-Frequency High-Power High-Temperature Devices
Comparing to other wafers, the sapphire wafer has many unique features such as high strength, anti-corrosion, anti-abrasion, good thermal conductivity, and good electrical isolation. Due to its excellent mechanical and chemical characteristics, the sapphire wafer plays an important role in the optoelectronics industry and widely used in precision mechanical parts and vacuum equipment.
Applications of Sapphire Wafer
- High-frequency device
- High power device
- GaN epitaxy device
- High-temperature device
- Optoelectronic device
- Light-emitting diode
| Growth | Kyroplous |
| Diameter | Ø 1" / Ø 2" / Ø 3" / Ø 4"/ Ø 5" |
| Size | 10 x 10 / 20 x 20 / 50 x 50 / 100 x 100 mm |
| Thickness | 0.43 mm / 0.5 mm / 1 mm |
| Surface | one side / two sides epi polished |
| Roughness | Ra ≤ 5 A |
| Package | Single wafer container or Ampak cassette |
| Chemical formula | Al2O3 |
| Crystal structure | Hexagonal |
| Lattice constant | 4.77 A |
| Hardness | 9 |
| Thermal conductivity | 46 W / mk |
| Dielectric constant | 11.58 |
| Refractive index | 1.768 |
Acceptance Check
1. The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
2. After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
3. Please open the vacuum package in a clean room when the products are to be applied.
4. If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
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