CVD SiC Fin

As semiconductor devices continue to evolve toward smaller geometries and higher integration levels, process equipment must operate under increasingly demanding conditions. Plasma etching, advanced deposition, and high-temperature manufacturing environments expose chamber components to extreme thermal stress, aggressive reactive gases, and high-energy ion bombardment.

To meet these challenges, Semicorex offers CVD SiC Fin, a high-density solid silicon carbide component manufactured through advanced Chemical Vapor Deposition (CVD) technology. Unlike conventional SiC thin-film coatings that typically measure only a few tens or hundreds of microns, CVD SiC Fin is a substantially thicker, fully dense silicon carbide structure with thicknesses ranging from 500 μm to 10,000 μm.

This unique construction enables superior durability, longer service life, and exceptional performance in some of the most demanding semiconductor processing environments.

What Makes CVD SiC Fin Different?

Many semiconductor components rely on SiC-coated graphite or thin-film SiC coatings for protection. While these solutions perform well in moderate process conditions, severe plasma exposure and extended operating cycles often require a more robust material system.

CVD SiC Fin is manufactured as a thick, high-purity silicon carbide body rather than a simple surface coating. The resulting structure provides:

Significantly greater material thickness

Higher structural integrity

Superior resistance to plasma erosion

Longer operational lifetime

Improved dimensional stability

Reduced contamination risk

The manufacturing complexity of thick CVD SiC components is substantially higher than that of standard thin-film products, particularly when producing intricate geometries and precision features.

High-Purity Dense SiC Structure

The CVD deposition process produces an exceptionally dense and uniform silicon carbide material with minimal porosity and outstanding purity.

Key material characteristics include:

• Ultra-high purity SiC composition
• High density and low porosity
• Excellent chemical inertness
• Outstanding thermal stability
• Superior corrosion resistance
• Extremely low particle generation

These properties are critical for semiconductor fabrication environments where process contamination can directly affect device performance and production yield.

Exceptional Performance in Plasma Environments

Modern etching processes generate highly reactive plasma species capable of attacking conventional materials over time. Components exposed to plasma must withstand continuous bombardment while maintaining dimensional accuracy and surface integrity.

CVD SiC Fin provides exceptional resistance to:

Fluorine-based plasma chemistry

Chlorine-based etching environments

Ion bombardment

Chemical corrosion

Thermal cycling

Its dense microstructure significantly reduces material degradation and helps maintain stable process conditions throughout extended production runs.

This makes the material particularly valuable in advanced integrated circuit manufacturing where process repeatability and equipment uptime are critical.

Designed for Ultra-High-Temperature Applications

In addition to plasma resistance, CVD SiC Fin performs exceptionally well under extreme thermal conditions.

Silicon carbide is known for its ability to retain mechanical strength and dimensional stability at temperatures that would challenge many conventional engineering materials.

Advantages include:

• Excellent thermal shock resistance
• Low thermal expansion
• High-temperature mechanical stability
• Resistance to thermal deformation
• Long-term reliability in harsh environments

Semicorex possesses the technical expertise required to manufacture CVD SiC components in a wide range of geometries, including:

• Fins
• Rings
  
• Shields
• Focus components
• Gas distribution elements
• Chamber liners
• Custom plasma-facing parts

Applications in Semiconductor Manufacturing

CVD SiC Fin components are widely used throughout semiconductor fabrication equipment, particularly in areas exposed to aggressive process conditions.

Typical applications include:

Plasma etching systems

Dry etch chambers

Semiconductor deposition equipment

Advanced logic device manufacturing

Memory device production

Power semiconductor processing

Compound semiconductor fabrication