Germanium wafer

Germanium wafer is an excellent semiconductor material and widely used in variety applications such as Sensor, Solar cell, Infrared optics applications, high brightness LEDs, and various semiconductor applications.


Growth  CZ or VGF  
Diameter  100 ± 0.4 150 ± 0.5 mm
Thickness  175 ± 25 250 ± 25  
Type N or P  
Orientation (100) 6˚ or 9˚ toward (111) ± 0.5 degree
Primary Flat Orientation (100) ± 0.5 degree
Length 32.5 ± 2.5 57.5 ± 2.5 mm
Secondary Flat Orientation None  
Resistivity 0.001 - 20 Ω.cm
Mobility (0.25 - 1.5) X 103 cm2/v.s
Carrier Concentration (0.5 - 30) X 1017 ea/cm-3
Etch Pit Density ≦ 2000 ea/cm-2
Front Side Surface Epi ready Polished  
Back Side Surface Etch  
Edge Profile Round