SiC Crystal Growth Furnace (PVT / LPE / HT-CVD) for High-Quality Silicon Carbide Single Crystal Production

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:

• Physical Vapor Transport (PVT)

• Liquid Phase Epitaxy (LPE)

• 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:

• High-purity graphite crucible and seed holder

• Integrated thermocouple + infrared temperature monitoring

• Vacuum and inert gas flow control system

• PLC-based automatic process control

• Cooling and exhaust gas treatment integration

Advantages:

• Mature and widely adopted technology

• Relatively low equipment cost

• Suitable for bulk SiC crystal growth

Applications:

• 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:

• Induction heating via electromagnetic coupling

• Stable gas delivery system (He / H₂ carrier gases)

• Controlled temperature gradient for crystal condensation

• Precise doping capability

Advantages:

• Low defect density

• High crystal purity

• Flexible doping control

Applications:

• 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:

• High-quality epitaxial layer growth

• Low defect density and high purity

• Relatively mild equipment requirements

• Scalable for industrial production

Advantages:

• Lower growth cost

• Improved epitaxial layer quality

Applications:

• Epitaxial layer growth on SiC substrates

• Manufacturing of high-efficiency power devices

Technical Advantages

• High-temperature operation (>2000°C)

• Stable vacuum and gas flow control

• Advanced PLC automation system

• Customizable furnace design (size, configuration, process)

• Compatible with 4–6 inch SiC crystal growth (expandable)

Our Capabilities

1. Equipment Supply

We provide fully engineered SiC crystal growth furnaces designed for:

• High-purity semi-insulating SiC

• Conductive SiC crystal production

• Batch manufacturing requirements

2. Raw Materials & Crystal Supply

We supply:

• SiC source materials

• Seed crystals

• Process consumables

All materials undergo strict quality inspection to ensure process stability.

3. Process Development & Optimization

Our engineering team supports:

• Custom process development

• Growth parameter optimization

• Yield and crystal quality improvement

4. Training & Technical Support

We offer:

• On-site / remote training

• Equipment operation guidance

• 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?

• Proven engineering experience in SiC equipment

• Multi-method compatibility (PVT / HT-CVD / LPE)

• Custom solutions for different production scales

• Full lifecycle support (equipment + materials + process)

GET A QUOTE

Request a Quote for SiC Crystal Growth Furnace (PVT / LPE / HT-CVD) for High-Quality Silicon Carbide Single Crystal Production

Tell us your required specifications, dimensions, quantity, application and technical requirements. You can also provide drawings or additional project information. Our technical team will review your requirements and reply as soon as possible.

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