Sapphire Ingots/Boules
Sapphire ingots, also known as boules, are the raw single-crystal Al2O3 material from which sapphire wafers are cut. Grown to exceptional purity and crystalline quality, our sapphire ingots serve customers who require custom wafer dicing, specialized geometries, or bulk material for research and specialty applications.
Custom sizing and cutting services are available upon request — please contact us to discuss your requirements.
Specifications
| 2 inch | 3 inch | 4 inch | 6 inch | 8 inch | 12 inch | |
| Diameter | 50.8 ± 0.1 mm | 76.2 ± 0.1 mm | 100 ± 0.1 mm | 150 ± 0.1 mm | 200 ± 0.1 mm | 300 ± 0.1 mm |
| Thickness | 100 ± 15 µm 430 ± 15 µm 500 ± 15 µm |
100 ± 15 µm 430 ± 15 µm 500 ± 15 µm |
200 ± 15 µm 500 ± 15 µm 650 ± 15 µm |
350 ± 15 µm 500 ± 15 µm 1000 ± 15 µm |
700 ± 25 µm 1000 ± 25 µm or customized |
725 ± 25 µm 1600 ± 25 µm or customized |
| Roughness | Ra ≤ 0.2 nm | Ra ≤ 0.2 nm | Ra ≤ 0.2 nm | Ra ≤ 0.2 nm | Ra ≤ 0.3 nm | Ra ≤ 0.5 nm |
| Warp | ≤ 10 µm | ≤ 10 µm | ≤ 10 µm | ≤ 15 µm | ≤ 30 µm | ≤ 60 µm |
| TTV | ≤ 3 µm | ≤ 10 µm | ≤ 10 µm | ≤ 10 µm | ≤ 10 µm | ≤ 10 µm |
| Scratch/Dig | 20/10 | 20/10 | 20/10 | 20/10 | 40/20 | 60/40 |
| Polish | SSP (Single Side Polished) or DSP (Double Side Polished) | |||||
| Primary flat | 16 mm | 22 mm | 32.5 mm | 47.5 mm | NOTCH | NOTCH |
| Edge Form | 45° Shape | |||||