• Single crystal               Si,   
• Conductivity:               P type ( B doped)
• Resistivity:                1-20 ohm-cm   (If you would like to measure the resistivity accurately, 
                                      please order our Portable 4 Probe Resistivity Testing Instrument.) 
• Size:                            4" diameter x 0.525 mm
• Orientation:                 (111)  4 +/- 0.5 degree off
• Polish:                          One side polished
• Surface roughness:       < 5A

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