| Material | Sapphire |
| Diameter, mm | 50.8±0.5 |
| Thickness, μm | 430±25 |
| Effective Area | >90% |
| Crystal Orientation | Al2O3 (0001) |
| Conductivity Type | Insulating type |
| Total Thickness Variation (TTV), μm | ≤10 |
| Bow, μm | ≤25 |
| Warp, μm | ≤35 |
| Surface Roughness, nm | ≤0.2 |
| Resistivity, Ω·cm | >1012 |
| Applications | Precision LED epitaxy |
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