Single Crystal Germanium Wafer or Ingot with n-type, p-type and un-doped conductivity and orientation <100> at Western Minmetals (SC) Corporation can be delivered in size of 2, 3, 4 and 6 inch diameter (50mm, 75mm, 100mm and 150mm) with surface finish of etched or polished in package of foam box or cassette for wafer and in sealed plastic bag for ingot with carton box outside, polycrystalline germanium ingot is also available upon request, or as customized specification to achieve the perfect solution.
| Symbol | Ge |
| Atomic Number | 32 |
| Atomic Weight | 72.63 |
| Element Category | Metalloid |
| Group, Period, Block | 14, 4, P |
| Crystal structure | Diamond |
| Color | Grayish white |
| Melting Point | 937°C, 1211.40K |
| Boiling Point | 2833°C, 3106K |
| Density at 300K | 5.323 g/cm3 |
| Intrinsic resistivity | 46 Ω-cm |
| CAS Number | 7440-56-4 |
| EC Number | 231-164-3 |
| No. | Items | Standard Specification | |||
| 1 | Germanium Wafer | 2″ | 3″ | 4″ | 6″ |
| 2 | Diameter mm | 50.8±0.3 | 76.2±0.3 | 100±0.5 | 150±0.5 |
| 3 | Growth Method | VGF or CZ | VGF or CZ | VGF or CZ | VGF or CZ |
| 4 | Conductivity | P-type / doped (Ga or In), N-type/ doped Sb, Un-doped | |||
| 5 | Orientation | (100)±0.5° | (100)±0.5° | (100)±0.5° | (100)±0.5° |
| 6 | Thickness μm | 145, 175, (500-1000) | |||
| 7 | Resistivity Ω-cm | 0.001-50 | 0.001-50 | 0.001-50 | 0.001-50 |
| 8 | Mobility cm2/V.s | >200 | >200 | >200 | >200 |
| 9 | TTV μm max | 5, 8, 10 | 5, 8, 10 | 5, 8, 10 | 5, 8, 10 |
| 10 | Bow μm max | 15 | 15 | 15 | 15 |
| 11 | Warp μm max | 15 | 15 | 15 | 15 |
| 12 | Dislocation cm-2 max | 300 | 300 | 300 | 300 |
| 13 | EPD cm-2 | <4000 | <4000 | <4000 | <4000 |
| 14 | Particle Counts a/wafer max | 10 (at ≥0.5μm) | 10 (at ≥0.5μm) | 10 (at ≥0.5μm) | 10 (at ≥0.5μm) |
| 15 | Surface Finish | P/E, P/P or as required | |||
| 16 | Packing | Single wafer container or cassette inside, carton box outside | |||
| No. | Items | Standard Specification | |||
| 1 | Germanium Ingot | 2″ | 3″ | 4″ | 6″ |
| 2 | Type | P-type / doped (Ga, In), N-type/ doped (As, Sb), Un-doped | |||
| 3 | Resistivity Ω-cm | 0.1-50 | 0.1-50 | 0.1-50 | 0.1-50 |
| 4 | Carrier Lifetime μs | 80-600 | 80-600 | 80-600 | 80-600 |
| 5 | Ingot Length mm | 140-300 | 140-300 | 140-300 | 140-300 |
| 6 | Packing | Sealed in plastic bag or foam box inside, carton box outside | |||
| 7 | Remark | Polycrystalline germanium ingot is available upon request | |||
- Sample Available Upon Request
- Safety Delivery of Goods By Courier/Air/Sea
- COA/COC Quality Management
- Secure & Convenient Packing
- UN Standard Packing Available Upon Request
- ISO9001:2015 Certified
- CPT/CIP/FOB/CFR Terms By Incoterms 2010
- Flexible Payment Terms T/T D/P L/C Acceptable
- Full Dimensional After-Sale Services
- Quality Inspection By Sate-of-the-art Facility
- Rohs/REACH Regulations Approval
- Non-Disclosure Agreements NDA
- Non-Conflict Mineral Policy
- Regular Environmental Management Review
- Social Responsibility Fulfillment
