- 2 INCH Sapphire(Al2O3) Substrate(ingot & wafer): 50.8±0.1mm / Thickness:430± 15 μm
- 4 INCH Sapphire(Al2O3) Substrate(ingot & wafer): 100.5+/-0.1mm / Thickness: 650± 20 μm
Defects- No cracks,scratched,particles
Material quality: for LEDs application, purity > 99.996 %