The SiC crystal growth furnace is a critical piece of equipment for producing high-quality silicon carbide (SiC) single crystals used in power electronics, RF devices, and advanced semiconductor applications.
Our systems support multiple mainstream growth technologies, including:
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Physical Vapor Transport (PVT)
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Liquid Phase Epitaxy (LPE)
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High-Temperature Chemical Vapor Deposition (HT-CVD)
With precise control of high temperature, vacuum, and gas flow, the furnace enables stable production of low-defect, high-purity SiC crystals in 4–6 inch sizes, with customization available for larger diameters.
Supported SiC Crystal Growth Methods
1. Physical Vapor Transport (PVT)
Process Principle:
SiC powder is sublimated at temperatures above 2000°C. The vapor species are transported along a temperature gradient and recrystallized on a seed crystal.
Key Features:
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High-purity graphite crucible and seed holder
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Integrated thermocouple + infrared temperature monitoring
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Vacuum and inert gas flow control system
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PLC-based automatic process control
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Cooling and exhaust gas treatment integration
Advantages:
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Mature and widely adopted technology
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Relatively low equipment cost
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Suitable for bulk SiC crystal growth
Applications:
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Production of semi-insulating and conductive SiC substrates
2. High-Temperature Chemical Vapor Deposition (HT-CVD)
Process Principle:
High-purity gases (e.g., SiH₄ + C₂H₄ / C₃H₈) decompose at 1800–2300°C and deposit SiC onto the seed crystal.
Key Features:
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Induction heating via electromagnetic coupling
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Stable gas delivery system (He / H₂ carrier gases)
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Controlled temperature gradient for crystal condensation
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Precise doping capability
Advantages:
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Low defect density
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High crystal purity
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Flexible doping control
Applications:
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High-performance SiC wafers for advanced electronic devices
3. Liquid Phase Epitaxy (LPE)
Process Principle:
Si and C dissolve in a high-temperature solution (~1800°C), and SiC crystallizes from a supersaturated melt during controlled cooling.
Key Features:
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High-quality epitaxial layer growth
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Low defect density and high purity
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Relatively mild equipment requirements
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Scalable for industrial production
Advantages:
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Lower growth cost
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Improved epitaxial layer quality
Applications:
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Epitaxial layer growth on SiC substrates
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Manufacturing of high-efficiency power devices
Technical Advantages
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High-temperature operation (>2000°C)
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Stable vacuum and gas flow control
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Advanced PLC automation system
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Customizable furnace design (size, configuration, process)
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Compatible with 4–6 inch SiC crystal growth (expandable)
Our Capabilities
1. Equipment Supply
We provide fully engineered SiC crystal growth furnaces designed for:
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High-purity semi-insulating SiC
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Conductive SiC crystal production
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Batch manufacturing requirements
2. Raw Materials & Crystal Supply
We supply:
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SiC source materials
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Seed crystals
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Process consumables
All materials undergo strict quality inspection to ensure process stability.
3. Process Development & Optimization
Our engineering team supports:
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Custom process development
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Growth parameter optimization
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Yield and crystal quality improvement
4. Training & Technical Support
We offer:
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On-site / remote training
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Equipment operation guidance
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Maintenance and troubleshooting support
FAQ
Q1: What are the main SiC crystal growth methods?
A: The primary methods include PVT, HT-CVD, and LPE, each suitable for different applications and production goals.
Q2: What is liquid phase epitaxy (LPE)?
A: LPE is a solution-based growth method where a saturated melt is slowly cooled to drive crystal growth on a substrate, enabling high-quality epitaxial layers.
Why Choose Our SiC Growth Furnace?
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Proven engineering experience in SiC equipment
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Multi-method compatibility (PVT / HT-CVD / LPE)
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Custom solutions for different production scales
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Full lifecycle support (equipment + materials + process)
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