序号  | 
         项目  | 
         规格  | 
        
1  | 
         Material 材料  | 
         High Purity MonocystallineAl₂O₃(≥99.996%)  | 
        
2  | 
         Orientation 表面晶向 Cto M  | 
         C-plane(0001) off to M-plane (1100) 0.2±0.1°;  | 
        
3  | 
         Orientation 表面晶向 C to A  | 
         0.00±0.1°  | 
        
4  | 
         Primary Flat to 主定位边晶向A-plane(11-20)  | 
         A-plane ± 0.2°  | 
        
5  | 
         Diameter 直径  | 
         50.8±0.1mm, 100±0.1mm, 150±0.2mm  | 
        
6  | 
         Thickness 厚度  | 
         420~440um, 640-660um,1300mm  | 
        
7  | 
         Flat Length 平边宽  | 
         16±1.0mm, 30±1.0mm, 47.5±1.5mm  | 
        
8  | 
         Edge profile 倒边  | 
         R倒角  | 
        
9  | 
         TTV  | 
         ≤5um  | 
        
10  | 
         BOW  | 
         0~-10um  | 
        
11  | 
         Warp  | 
         ≤15um  | 
        
12  | 
         Front Side Roughness 正面粗糙度  | 
         <0.3nm  | 
        
13  | 
         LTV  | 
         ≤1.8um  | 
        
14  | 
         R向(r-plane)  | 
         R9  | 
        
15  | 
         Back Side Roughness 背面粗糙度  | 
         0.8-1.2um  | 
        
16  | 
         Laser Mark 激光标记  | 
         背面打码/Back side  | 
        
17  | 
         Package 包装  | 
         25 片/盒,25 pcs/cassette  |