Features of 2 in Sapphire Wafer A-plane (11-20) Single Crystal Al2O3
- Material: High Purity >99.996%, single crystal Al2O3
- Dimension: 50.8 mm +/- 0.1 mm
- Thickness: 0.50 mm standard
- Lattice Parameter: a=4.785 A, c=12.991 A
- Density: 3.98 g/cm3
- Orientation: A-plane (11-20) 0.2 +/- 0.1 degree
- Primary Flat Orientation: C-plane
- Primary flat length: 16.0 +/- 1 mm
- Total Thickness Variation:
- Bow:
- Warp:
- Thermal Expansion Coefficient: 6.66 x 10-6 / °C parallel to C axis, 5 x 10-6 /°C perpendicular to C axis
- Dielectric Strength: 48,000 V/cm (1,200 V/mil)
- Polishing: single side polished Ra