Ge
Density：5.33g/cm^3
Transmission：＞46%
Resistivity：0.03-50Ω*cm
Conductivity type：N-type or P-type
| Type | Size | Diagonal | Roughness(μm) | Flatness(mm) | Parallelism(mm) |
| Square | Small | 10-25mm | 1.6 | 0.005 | 0.01 |
| Medium | 25-100mm | 1.6 | 0.01 | 0.01 | |
| Large | 100-295mm | 1.6 | 0.02 | 0.01 | |
| Type | Size | Diameter | Roughness(μm) | Flatness(mm) | Parallelism(mm) |
| Circular | Small | φ10-φ25mm | 1.6 | 0.005 | 0.01 |
| Medium | φ25-φ100mm | 1.6 | 0.01 | 0.01 | |
| Large | φ100-φ295mm | 1.6 | 0.02 | 0.01 |
