Customized sic coated wafer susceptor

The SiC coated wafer susceptor is a critical component in semiconductor manufacturing, especially in epitaxial growth processes such as MOCVD, PECVD, and CVD. It serves as the stable carrier that supports wafers under high-temperature, corrosive, and vacuum environments, ensuring uniform heat transfer and contamination-free processing. By applying a CVD SiC coating onto a high-purity graphite susceptor, the susceptor combines excellent thermal performance with superior chemical resistance—making it indispensable for next-generation semiconductor production.

Material Composition & Physical Properties

The Customized SiC Wafer Susceptor from Semixlab is manufactured using two core materials:

CVD SiC Coating

●Exceptional hardness (Mohs 9+) and durability

●High purity (>99.999%) to minimize particle generation

●Excellent chemical inertness against corrosive gases (HCl, NH₃, H₂, etc.)

●Thermal stability up to **1600°C

●Dense, uniform coating thickness for long service life

High-Purity Graphite Susceptor

●High thermal conductivity for stable temperature distribution

●Lightweight structure compared to monolithic ceramics

●Precision-machined to meet strict wafer flatness requirements

●Stable mechanical strength under thermal cycling

These combined properties make the SiC coated susceptor highly resistant to thermal shock, plasma erosion, and particle contamination, ensuring consistent wafer quality.

Applications in Semiconductor Processing

The SiC coated wafer susceptor is widely used in advanced semiconductor processes, particularly in:

●Epitaxial Wafer Growth (Epi Wafer Manufacturing) : Ensures uniform heating and minimizes wafer bowing during epitaxial deposition of SiC, GaN, GaAs, and other compound semiconductors.

●MOCVD & CVD Processes : Provides a chemically stable, high-purity surface for uniform thin-film deposition.

●LED & Power Semiconductor Fabrication : Supports high-brightness LED wafers and wide bandgap materials in high-temperature growth chambers.

●High-Temperature Annealing & Diffusion : Maintains structural stability under repeated thermal cycles while preventing contamination.

By optimizing heat transfer and maintaining surface integrity, the susceptor directly influences wafer yield, uniformity, and defect reduction—making it a mission-critical component in epitaxial process lines.

Semixlab Competitive Advantages

At Semixlab, we provide more than standard components—we deliver tailored solutions that meet the demanding requirements of semiconductor manufacturers:

Customization Expertise

Design and manufacture of susceptors in different sizes, shapes, coating thicknesses, and geometries to match specific MOCVD/CVD reactors.

SiC Coated Wafer Holder

Silicon Carbide coated Wafer Susceptor

Technical Consultation

Expert engineering team provides process-specific recommendations to improve wafer yield and extend susceptor lifetime.

Extreme Condition Testing

All products undergo rigorous testing for thermal stability, chemical resistance, and mechanical durability under real process conditions.