Ge wafer to micro-electronics and opto-electronics industry in diameter range from 2 inch to 4 inch
We are a worldwide supplier of single crystal Ge wafer ( Germanium wafer ) and single crystal Ge ingot , we have a strong advantage in providing Ge wafer to micro-electronics and opto-electronics industry in diameter range from 2 inch to 4 inch . Ge wafer is an elemental and popular semiconductor material , due to its excellent crystallographic properties and unique electric properties , Ge wafer is widly used in Sensor , Solar cell and Infrared optics applications . We can provide low dislocation and epi ready Ge wafers to meet your unique germanium needs . Ge wafer is produced as per SEMI. standard and packed in standard cassette with vacuum sealed in clean room enviroment , with a good quality control system , We are dedicated to providing clean and high quality Ge wafer products . We can offer both electronics grade and IR grade Ge wafer , please contact us for more Ge product information
Single Crystal Germanium Wafer Capability
SWI can offer both electronics grade and IR grade Ge wafer and Ge ingot , please contact us for more Ge product information . 
  
| Conductivity | Dopant | Resistivity ( ohm-cm )  |  			Wafer Size | 
|---|---|---|---|
| NA | Undoped | >= 30 | Up to 4 inch | 
| N type | Sb | 0.001 ~ 30 | Up to 4 inch | 
| P type | Ga | 0.001 ~ 30 | Up to 4 inch | 
Applications:
Semiconductor device , Microelectronics , Sensor , Solar cell , IR optics.
Ge Wafer Properties
| Chemical formula | Ge | 
| Crystal structure | Cubic | 
| Lattice parameter | a=0.565754 | 
| Density ( g / cm3 ) | 5.323 | 
| Thermal conductivity | 59.9 | 
| Melting point ( °C ) | 937.4 | 
Product Specification
| Growth | Czochralski | 
|---|---|
| Diameter | Ø 2" / Ø 3" / Ø 4" | 
| Thickness | 500 um ~ 625 um | 
| Orientation | <100> / <111> / <110> or others | 
| Conductivity | P - type / N - type | 
| Dopant | Gallium / Antimony / Undoped | 
| Resistivity | 0.001 ~ 30 ohm-cm | 
| Surface | SSP / DSP | 
| TTV | <= 10 um | 
| Bow / Warp | <= 40 um | 
| Grade | Electronics grade | 
