No. | Items | Standard Specification | |||
1 | Single Crystal Germanium Wafer | ||||
1-1 | Diameter | 2″ | 3″ | 4″ | 6″ |
1-2 | Diameter mm | 50.8±0.3 | 76.2±0.3 | 100±0.5 | 150±0.5 |
1-3 | Growth Method | VGF or CZ | |||
1-4 | Conductivity | P/(Ga or In), N/Sb, Un-doped | |||
1-5 | Orientation | (100)±0.5° | (100)±0.5° | (100)±0.5° | (100)±0.5° |
1-6 | Thickness μm | 145, 175, (500-1000) | |||
1-7 | Resistivity Ω-cm | 0.001-50 | |||
1-8 | Mobility cm2/V.s | >200 | >200 | >200 | >200 |
1-9 | TTV μm max | 5, 8, 10 | 5, 8, 10 | 5, 8, 10 | 5, 8, 10 |
1-10 | Bow μm max | 15 | 15 | 15 | 15 |
1-11 | Warp μm max | 15 | 15 | 15 | 15 |
1-12 | Dislocation cm-2 max | 300 | 300 | 300 | 300 |
1-13 | EPD cm-2 | <4000 | |||
1-14 | Particle Counts a/wafer max | 10 (at ≥0.5μm) | |||
1-15 | Surface Finish | P/E, P/P or as required | |||
1-16 | Packing | Single wafer container or cassette inside, carton box outside | |||
2 | Single Crystal Germanium Ingot or Bar | ||||
2-1 | Diameter mm | 12-300, 150-200 | |||
2-2 | Type | N type (As, In, Sb), P Type(Ca) | |||
2-3 | Resistivity Ω-cm | 0.1-50 | |||
2-4 | Carrier Lifetime μs | 80-600 | |||
2-5 | Length mm | 140-300 | |||
2-6 | Packing | Sealed in plastic bag or foam box inside, carton box outside | |||
2-7 | Remark | Poly crystal ingot also available upon request |
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, 1720.85°F, 1211.40K |
Boiling Point | 2833°C, 5131°F, 3106K |
Density at 300K | 5.323 g/cm3 |
Intrinsic resistivity | 46 Ω-cm |
CAS Number | 7440-56-4 |
EC Number | 231-164-3 |