Parameter | Specification Range |
Wafer Diameter | 100, 125, 150 mm |
Handle Layer Specifications | |
Handle Thickness | 350–800 μm |
Handle Thickness Tolerance | ±5 μm |
Stack Thickness | 350–1150 μm |
Dopant Type | N or P |
Doping | N type: Phos, Red Phos, Sb & As P type: Boron |
Resistivity | ≤0.001 – ≥10000 Ω-cm |
Growth Method | CZ, MCZ or FZ |
Crystal Orientation | <100>, <111> or <110> |
Backside Finish | Lapped/Etched or Polished |
Buried Oxide Specifications | |
Thermally Oxidised Buried Oxide Thickness | 0.2 – 4.0 μm grown on Handle, Device or both wafers |
Device Layer Specifications | |
Device Layer Thickness | 1.5 - 100 μm |
Tolerance | ± 0.5 μm |
Dopant Type | N or P |
Doping | N type: Phos, Red Phos, Sb & As P type: Boron |
Resistivity | ≤0.001 – ≥10000 Ω-cm |
Growth Method | CZ, MCZ or FZ |
Crystal Orientation | <100>, <111> or <110> |
Buried Layer Implant | N type or P type |
Trench Mask Tone | Positive Resist |
Trench Mask Type | E-beam master for projection aligner |
Trench Line Width | > 2um |
Trench Aspect Ratio | 15:01 |
Trench Sidewall Doping Type | Phosphorus |
Trench Refill – Oxide (each sidewall) | 0.1 – 1.0 μm |
Trench Refill – Polysilicon | To Fill (Doped or undoped Polysilicon) |
Planarisation | CMP |
Final Field Oxide | Thermal oxide + TEOS up to 1um |