High Purity Quartz Crucibles for Semiconductor & CZ Crystal Growth
FGQuartz manufactures premium fused quartz crucibles designed for semiconductor-grade silicon crystal growth and photovoltaic applications. Our crucibles offer ultra-high purity, low bubble content and excellent thermal stability, ensuring consistent performance in CZ pulling processes.
What Are Quartz Crucibles?
Quartz crucibles are high purity containers made from fused silica, used primarily in the Czochralski (CZ) process for growing single crystal silicon ingots. They must withstand extreme temperatures and maintain structural stability during prolonged crystal growth cycles.
Due to strict requirements on impurity levels and thermal behavior, quartz crucibles are one of the most critical consumables in semiconductor and solar industries.
Key Advantages of Quartz Crucibles
Ultra High Purity
SiO₂ ≥ 99.99%, extremely low metallic contamination for semiconductor applications.
Low Bubble Content
Controlled bubble distribution improves crystal quality and yield.
High Thermal Stability
Stable under extreme thermal gradients in CZ process.
Long Service Life
Optimized structure reduces deformation and extends usage cycles.
Uniform Wall Thickness
Ensures stable melting and crystal growth conditions.
Low Contamination Risk
Minimizes oxygen and impurity transfer to silicon ingots.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High Purity Fused Quartz |
| SiO₂ Purity | ≥ 99.99% |
| Size Range | 14″ – 36″ (Custom sizes available) |
| Wall Thickness | 8 – 20 mm |
| Bubble Content | Low / Controlled distribution |
| Working Temperature | > 1400°C |
| OH Content | < 10 ppm |
| Metal Impurities | < 20 ppm |
Quartz Crucible Types
Low Bubble Crucibles
High Strength Crucibles
Custom Quartz Crucibles
Applications
Semiconductor Industry
Used in CZ crystal growth for single crystal silicon ingots.
High Temperature Melting
Used for melting silicon materials under controlled environments.
Photovoltaic Industry
Production of mono-crystalline silicon wafers.
Advanced Materials Processing
Suitable for high purity material applications.
Crystal Growth Systems
Core component in high temperature crystal pulling processes.
Custom Quartz Crucible Solutions
We provide customized quartz crucibles tailored to your crystal growth equipment and process requirements.
Custom diameter & height
Wall thickness optimization
Bubble control engineering
Thermal performance optimization
Surface treatment
Process consultation
Quality Control
- Raw material purity control
- Bubble inspection and control
- Dimensional accuracy measurement
- Thermal performance verification
Why Choose FGQuartz
- Experience in semiconductor quartz components
- High purity raw material sourcing
- Advanced manufacturing capability
- Strict quality control system
- Global supply experience