PG (Pyrolytic Graphite) Coated Ring

Key Features

• Ultra-high thermal conductivity – In-plane thermal conductivity for Pyrolytic Graphite can reach 1000–1800 W/m·K, meaning heat spreads rapidly and evenly across the ring.

• Superior thermal field stability – The design naturally reduces temperature gradients and suppresses local hot spots, even in complex high-temperature systems.

• Excellent thermal shock resistance – With a low thermal expansion coefficient, the ring holds its shape through repeated heating and cooling cycles without warping.

• High-temperature capability – It performs reliably in inert atmospheres at temperatures beyond 2500°C.

• High purity, low contamination – The CVD-derived carbon layers are exceptionally clean, keeping metallic impurities and particle shedding to a minimum.

• Long service life – Better thermal management slows material wear, so you get extended operational lifetimes from each part.

• Customizable design – We offer a range of diameters, thicknesses, and coating specs to match different semiconductor tools and process needs.

PG Coated Ring vs PyC Coated Ring

Go with PG if your top priorities are thermal conductivity and temperature uniformity.

Choose PyC when you are more concerned about corrosion resistance, minimal particle generation, and cost efficiency.

Applications

These PG Coated Rings are already being used across a broad spectrum of equipment, including:

• PVT SiC crystal growth systems

• Semiconductor thermal field assemblies

• SiC crystal growth tools

• High-temperature vacuum furnaces

• Rapid Thermal Processing (RTP) systems

• Annealing ovens

• Diffusion furnaces

• Heater protection structures

• Heat shields

• Thermal insulation stacks

• And other ultra-high-temperature semiconductor processes

Why Work with VETEK?

• We are not a middleman—everything from graphite machining through to final coating is handled inside our own facilities.

• Our in-house capabilities cover purification, CNC machining, coating deposition, and full inspection—all under one roof.

• We have deep roots in semiconductor and power electronics materials, so we understand the real-world demands of your processes.

• Our coating portfolio includes SiC, TaC, PyC, and custom thermal field designs—we are not limited to one technology.

• Need a custom solution? Just share your drawings or equipment model, and our engineering team will work with you directly.

• We maintain a stable supply chain and on-time delivery track record for customers around the globe.

• Bottom line: we offer a single, reliable source for semiconductor thermal field components and advanced carbon-based materials, from concept to production.