Diameter  | 
         2"  | 
         3"  | 
         4"  | 
         5"  | 
         6"  | 
         8"  | 
        
Material  | 
         Glass  | 
        |||||
Grade  | 
         BF33, B270, Sodalime, Pyrex, Borofloat, Borosilicate ,Corning eagle XG, BK7, and etc.  | 
        |||||
Thickness (um)  | 
         279  | 
         280  | 
         525  | 
         625  | 
         675  | 
         725  | 
        
Surface Finished  | 
         DSP/SSP  | 
        |||||
TTV (um)  | 
         <8  | 
         <10  | 
         <10  | 
         <10  | 
         <15  | 
         <20  | 
        
Bow/Warp (um)  | 
         <30  | 
         <30  | 
         <40  | 
         <40  | 
         <60  | 
         <60  | 
        
Top Side Ra (nm)  | 
         <1  | 
        |||||
S/D (um)  | 
         40/20  | 
        |||||