Graphite

Product Overview

Semixlab supplies high‑purity graphite materials and precision‑machined graphite components for semiconductor, photovoltaic and crystal growth equipment. Fine‑grain isostatic graphite offers stable thermal performance, electrical conductivity, low thermal expansion and excellent machinability.

Typical products include susceptors, heaters, crucibles, rings, trays, electrodes, furnace components and drawing‑based graphite parts. Purification and CVD SiC or TaC coating options are available for demanding process environments.

Product Advantages & Features

High Purity and Low Contamination: Purified graphite grades help reduce metallic impurities and contamination risks in semiconductor thermal processes.
Stable Thermal Performance: Good thermal conductivity and low thermal expansion support uniform heating and dimensional stability.
Precision Machinability: Fine, uniform grain structure enables complex holes, grooves, pockets and thin‑wall geometries.
Optional Protective Coatings: CVD SiC or TaC coatings can improve oxidation, corrosion and particle resistance for selected applications.

Technical Specifications

Parameter	Representative Typical Value
Material	Fine‑Grain Isostatic Graphite
Bulk Density	1.83 g/cm³
Shore Hardness	58 HSD
Electrical Resistivity	10 μΩ·m
Flexural Strength	Approx. 47 MPa
Compressive Strength	Approx. 103 MPa
Thermal Conductivity	130 W/(m·K)
CTE	4.6 × 10⁻⁶/K
Average Grain Size	8–10 μm

Values are representative of one isostatic graphite grade. Final specifications must be confirmed according to the selected material and test method.

Application Fields

· Epitaxy susceptors and wafer carriers
· MOCVD and CVD heaters
· Silicon and SiC crystal growth hot zones
· Graphite crucibles, rings and thermal‑field components
· Vacuum furnace fixtures and electrodes
· SiC‑ or TaC‑coated graphite components

Customization Capabilities

Semixlab supports graphite grade selection, purification, precision CNC machining, surface finishing and CVD coating. Dimensions, hole patterns, grooves, resistivity, purity and coating requirements can be customized according to customer drawings.

Physical sample mapping is also available for authorized replacement and localization projects.

Quality Assurance & Company Strength

· Graphite sourced from established material manufacturers
· Dimensional and surface‑quality inspection
· Optional density, resistivity, purity and ash‑content testing
· In‑house machining, purification and CVD coating support
· Inspection standards agreed before production

Semixlab publicly lists CNC machining, material purification, CVD coating and material testing among its core service capabilities.

Resources & Call to Action

Engineering Consultation: Provide the operating temperature, atmosphere, process gas, heating method and required service life for grade selection.
Request a Quote: Submit your CAD drawing, graphite grade, purity requirement, coating option and quantity for technical evaluation.

Graphite

Graphite behaves differently from most structural materials. It’s stable under heat, and also conducts electricity in a predictable way. That combination is why it keeps being used in industrial systems.In Semixlab’s applications, graphite is used where process conditions are not gentle — high temperature, continuous operation, that kind of environment.People usually don’t choose it because it’s “advanced”, but because it doesn’t change much over time. That reliability is the key point.