• Single crystal             Silicon   
• Conductive type:      N- type/ As-doped 
• Resistivity:               0.005-0.05 ohm.cm  (If you would like to measure the resistivity accurately, 
                                    please order our Portable 4 Probe Resistivity Testing Instrument.) 
• Size:                         50.8 diameter +/- 0.5 mm x 0.5 +/- 0.025 mm
• Orientation:               (111) +/- 1^o
• Polish:                       two sides polished
• Surface roughness:    < 5A

Optional:  you may need tool below to handle the wafer ( click picture to order )