Ginechip — Your Trusted Source for High-Purity Semiconductor Ingots
Monocrystalline silicon and compound semiconductor ingots for wafer slicing and advanced device fabrication
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Silicon Ingots
Silicon ingots form the foundational material for the global semiconductor industry, grown as large-diameter monocrystalline cylinders using the Czochralski (CZ) process—the dominant method for producing high-purity single-crystal silicon. In the CZ process, electronic-grade polysilicon is melted in a quartz crucible at ~1420°C under inert argon atmosphere, with a seed crystal dipped and slowly pulled while rotating to form a dislocation-free boule up to 300 mm (12 inches) in diameter and over 2 meters long. Advanced variants include Magnetic Czochralski (MCZ) for improved dopant uniformity and reduced oxygen-induced defects via applied magnetic fields that dampen melt convection. Our silicon ingots achieve exceptional purity (>99.999999% or 8N–9N), low oxygen (typically 10–20 ppma controlled), and carbon (<0.1 ppma) content, with precise doping (boron for p-type, phosphorus/antimony/arsenic for n-type) yielding resistivity from 0.001 to >1000 Ω·cm. Key quality metrics include low dislocation density (<100/cm²), minimal swirl defects, and excellent radial and axial uniformity. Post-growth annealing eliminates thermal donors and stabilizes properties. These ingots are sliced into prime-grade wafers for logic, memory, power devices, sensors, and solar cells. Ginechip sources from leading producers with full traceability, providing ingots in standard diameters (150–300 mm) ready for wafer processing or custom slicing. Rely on our silicon ingots for superior crystal quality, consistent electrical characteristics, and high yield in downstream wafer fabrication and device manufacturing.
| Parameter | Specification | Unit |
|---|---|---|
| Growth Method | Czochralski (CZ) / MCZ | — |
| Diameter | 150 / 200 / 300 | mm |
| Length | Up to 2200+ | mm |
| Purity | >99.999999 (8N–9N) | — |
| Oxygen Content | 10–20 (controlled) | ppma |
| Carbon Content | <0.1–0.5 | ppma |
| Resistivity Range | 0.001 – >1000 | Ω·cm |
| Dopant | B, P, Sb, As | — |
| Dislocation Density | <100 | /cm² |
| Orientation | <100> / <111> | — |
| Crystal Defect | Low swirl / COP controlled | — |
| Thermal Donor | Minimized via anneal | — |
| Applications | Wafer slicing / IC / Power / Solar | — |
Compound Ingots
Compound semiconductor ingots, primarily III-V materials such as Gallium Arsenide (GaAs) and Indium Phosphide (InP), are grown using specialized techniques like Vertical Gradient Freeze (VGF), Liquid Encapsulated Czochralski (LEC), or Vertical Bridgman to produce high-quality single crystals with superior optoelectronic and high-frequency properties. GaAs ingots, with direct bandgap of 1.42 eV and electron mobility up to 8500 cm²/V·s, excel in RF/microwave devices, LEDs, lasers, and high-efficiency solar cells. InP ingots offer direct bandgap ~1.35 eV, high electron mobility, and lattice matching to InGaAs/InGaAsP for photonic integrated circuits in fiber optics and telecom. Growth occurs under high-pressure inert atmosphere to suppress volatile component evaporation, achieving low dislocation densities (<500–1000/cm² for GaAs, lower for VGF InP) and controlled doping (n-type Si/Te, p-type Zn/Cd). Our compound ingots feature excellent uniformity, minimal precipitates, and high structural perfection for epitaxial growth. Diameters up to 150–200 mm are available, with optional semi-insulating properties (high resistivity >10⁷ Ω·cm via deep-level compensation). Applications include high-speed transistors (HEMT, HBT), optoelectronic devices (VCSEL, photodetectors), and power amplifiers for 5G/6G. Ginechip supplies traceable ingots with full characterization (Hall mobility, FTIR, X-ray rocking curve, EPD mapping). Choose our compound semiconductor ingots for exceptional material quality, enabling next-generation high-frequency, photonic, and power electronics with unmatched performance.
| Parameter | Specification (GaAs / InP typical) | Unit |
|---|---|---|
| Material | GaAs / InP | — |
| Growth Method | LEC / VGF / VB | — |
| Diameter | 50–200 | mm |
| Bandgap | 1.42 / 1.35 | eV |
| Electron Mobility | ~8500 / ~5000 | cm²/V·s |
| Dislocation Density (EPD) | <1000 / <500 | /cm² |
| Resistivity (SI grade) | >10⁷ | Ω·cm |
| Dopant Options | Si, Te, Zn, C / Fe, S, Zn | — |
| Lattice Constant | 5.653 / 5.869 | Å |
| Melting Point | 1238 / 1060 | °C |
| Density | 5.32 / 4.81 | g/cm³ |
| Thermal Conductivity | 0.55 / 0.68 | W/cm·K |
| Applications | RF / Opto / Solar / Photonics | — |