Silicon Carbide (SiC) is a compound composed of silicon (Si) and carbon (C). It possesses extremely high hardness, thermal conductivity, and chemical stability, making it a crucial material in the semiconductor and precision machining industries.
Key Properties:
- Chemical formula: SiC
- Crystal structure: Hexagonal (α-SiC) or cubic (β-SiC)
- Mohs hardness: ~9.2 (second only to diamond and cubic boron nitride)
- Melting point: ~2,730 °C
- Thermal conductivity: 120–270 W/m·K (higher than alumina or aluminum nitride)
- Corrosion resistance: Excellent in acids, alkalis, and high-temperature atmospheres
- Electrical properties: Wide bandgap semiconductor (≈3.26 eV)
Applications:
- Semiconductor Industry – Used in power devices (SiC MOSFETs, Schottky diodes), substrates for GaN-on-SiC RF and 5G applications.
- CNC Precision Machining – Used to produce high-rigidity ceramic fixtures, wear-resistant bearings, and vacuum chamber components in etching, CVD, and PVD equipment.
- Other Uses – Abrasives, cutting tools, and SiC heating elements.
SiC (Silicon Carbide) – Applications Overview
1️⃣ Semiconductor Industry Applications
SiC is a wide bandgap semiconductor material that can withstand higher voltages, temperatures, and current densities compared to traditional silicon (Si). It has become essential for next-generation high-performance electronic devices.
Main Applications:
- Power Devices: SiC MOSFETs and Schottky Diodes used in EVs, chargers, solar inverters, and industrial power systems.
- RF & Communication: Substrate material for GaN-on-SiC chips used in 5G base stations, radar, and satellite communication.
- High-Temperature Sensors & Aerospace Electronics: Ideal for harsh environment sensors and control modules.
Advantages:
- High breakdown voltage
- Excellent thermal conductivity
- Low switching loss
- Stable operation above 200°C
2️⃣ Semiconductor Equipment Components
In wafer fabrication, SiC’s corrosion resistance, wear resistance, and thermal stability make it widely used in vacuum chamber components, focus rings, susceptors, and precision fixtures.
Examples:
- Etching Equipment: SiC parts resist fluorine-based gas corrosion, extending component lifespan.
- CVD/PVD Chambers: Maintain mechanical stability at high temperatures.
- Vacuum Systems: Perform reliably in high-temperature, plasma environments.
Key Benefits:
- High hardness and wear resistance
- Low contamination (minimizes particle generation)
- Excellent thermal stability
3️⃣ CNC Precision Machining
Due to its extreme hardness and brittleness, SiC requires CNC grinding, ultrasonic, or laser-assisted machining for precise shaping.
Common Applications:
- High-rigidity ceramic fixtures and support components
- Optical instrument bases (laser platforms, telescope mounts)
- Precision bearings and sliding elements
- Structural components and thermal shields for semiconductor tools
Advantages:
- High stiffness and low thermal expansion
- Excellent dimensional stability
- Suitable for ultra-clean and high-vacuum environments
4️⃣ Other Industrial Applications
- Abrasives: Grinding wheels, cutting disks, and polishing powders.
- High-Temperature Components: SiC heating elements, furnace tubes, refractory materials.
- Renewable Energy: Substrates for solar modules and power module heat spreaders.
- Automotive Industry: SiC power modules are widely adopted in EV inverters and chargers.
#Silicon Carbide, #SiC, #Silicon Carbide Materials, #Silicon Carbide Semiconductors, #SiC Power Devices, #Wide Bandgap Materials
Application Keywords:
#Silicon Carbide Wafer Substrates
SiC MOSFETs
SiC Diodes / SiC Schottky Diodes
Semiconductor Processing Equipment
CVD Chambers / Etching Machine Parts / Vacuum Chamber Structures
#CNC Precision Machining / Ceramic Machining / Ultrasonic Machining
High Hardness Materials / Wear-Resistant Ceramics / High-Temperature Structural Components
#Power Modules / Electric Vehicle Inverters / 5G RF Modules
High Thermal Conductivity Materials / Heat Dissipation Substrates
#CNC Machining, #CNC Precision Machining, #Semiconductor Components, #Automation Equipment, #Precision Components, #Robotic Arms, #Stainless Steel Machining, #Engineering Plastics, #Ceramic Machining
Yong Yi Technology Co., Ltd. logo
location_on 42756 No. 188-9, Section 1, Dafeng Road, Tanzih District, Taichung City, Taiwan
Call: +886-4-25341382
Ring_Volume
+886-4-25341847
Email: yongyi-sales@umail.hinet.net
Email: justinwu6767@gmail.com