SiC Ceramic Sealing Ring

Semixlab provides high-performance SiC Ceramic Sealing Rings designed for semiconductor manufacturing equipment requiring excellent sealing reliability, thermal stability, and contamination control.

Manufactured from high-purity silicon carbide ceramic, our sealing rings are engineered for demanding environments such as CVD, epitaxy, plasma etching, thermal processing, and vacuum semiconductor systems.

Product Features of SiC Ceramic Sealing Ring

The excellent thermal stability of SiC enables the sealing ring to maintain structural integrity under high-temperature conditions. Its low thermal expansion coefficient and superior thermal shock resistance minimize deformation caused by repeated heating and cooling cycles, ensuring stable sealing performance in processes such as epitaxy, CVD deposition, and thermal treatment.

Due to its strong Si-C bonding structure, SiC ceramic provides outstanding chemical and plasma resistance. The material can withstand aggressive process environments containing fluorine-based plasma, chlorine gases, and high-temperature reactive atmospheres, effectively reducing corrosion, particle generation, and maintenance frequency.

In addition, high-purity SiC offers excellent mechanical strength, wear resistance, and low contamination characteristics. Compared with metal sealing components, SiC Ceramic Sealing Ring provides lower outgassing, improved cleanliness, and better dimensional stability, meeting the strict requirements of semiconductor manufacturing.

Specifications can be customized according to equipment design and process requirements.

Applications of SiC Ceramic Sealing Ring in Semiconductor Processes

1. Semiconductor Process Chamber Sealing

SiC Ceramic Sealing Ring plays a critical role in maintaining stable sealing conditions inside semiconductor process chambers. It helps prevent gas leakage, protects sensitive processing areas, and ensures consistent vacuum and pressure control during semiconductor fabrication.

2. Plasma Etching and Cleaning Equipment

Modern semiconductor etching processes rely on highly reactive plasma environments, including CF₄, SF₆, and NF₃ chemistries. Conventional sealing materials may suffer from erosion and contamination issues during long-term operation.

3. High-Temperature Furnace and Thermal Processing Systems

In diffusion furnaces, annealing systems, and high-temperature wafer processing equipment, sealing components must withstand repeated thermal stress. The excellent heat resistance and dimensional stability of SiC ceramics make these sealing rings suitable for high-temperature interfaces where long-term reliability is required.

4. Vacuum Semiconductor Equipment

For vacuum processing modules and advanced wafer manufacturing systems, SiC Ceramic Sealing Ring provides:

Stable vacuum sealing performance

Low gas release characteristics

High chemical durability

Long operational lifetime

Q1: What is a SiC Ceramic Sealing Ring?

A SiC Ceramic Sealing Ring is a precision sealing component made from high-purity silicon carbide ceramic. It is designed for semiconductor equipment requiring high-temperature stability, chemical resistance, and low contamination performance.

Q2: Why use SiC ceramic instead of metal sealing rings?

Compared with metal materials, SiC ceramic provides:

Higher temperature resistance

Better plasma durability

Lower contamination risk

Superior dimensional stability

making it more suitable for advanced semiconductor processes.

Q3: Can Semixlab customize SiC Ceramic Sealing Rings?

Yes. Semixlab provides OEM/ODM customization, including dimensions, structure, material selection, and surface requirements according to customer equipment specifications.

Q4: Which semiconductor processes use SiC Ceramic Sealing Rings?

SiC Ceramic Sealing Rings are commonly used in:

CVD systems

SiC/GaN epitaxy equipment

Plasma etching systems

Thermal processing equipment

Vacuum semiconductor modules