2” Sapphire Ingot Specification Item: 2 Inch Sapphire Ingot Primary Flat Orientation: A-plane(1120)±0.2° Orientation of C-plane Surface: C-plane(0001)±0.1° Diameter: 50.9±0.1mm Circularity: ±0.02mm Straightness: ±0.02mm Primary Flat Length: 16.0±0.5mm Bubbles: ≦15% Mark Effective Length /pc :80~240mm /pc         2"蓝宝石晶片的指标                     Crystal Materials (材料) High Purity, Monocrystalline Al2O3       Grade(加工等级)   Prime,Epi-ready               Orientation(晶体定向)   C-axis [0001] off to M-plane[1-100] 0.2°±0.05°       Diameter(直径)   50.8mm± 0.1               Thickness(厚度)   430um+/-10um