MWI offers high quality materials that can be coated with a thin layer of Pyrolytic Carbon, significantly minimizing the material’s permeability to reactive substances. Additionally, MWI suggests an additional step to enhance the products’ resistance to process reagents. This involves impregnating the core with resin, effectively reducing any existing porosities.
Advanced applications in the Semiconductor, LED, Photovoltaic, Metallurgical, and Advanced Materials industries often require post-machining treatments for process optimization. We provide a wide range of progressive solutions to meet today’s most demanding applications.
Carbon & Graphite Coatings & Impregnations Solutions
Silicon Carbide (SiC) Coating
- Performed by both Chemical Vapor Deposition (CVD) and Chemical Vapor Impregnation (CVI)
- Ultra-high purity and resistance to oxidizing atmosphere
- Excellent thermal shock resistance
- Excellent chemical resistance
- CVD or CVI coating thickness engineered for specific applications
- CVD or CVI coatings available on complex geometries
Products
– MOCVD Susceptors
– Graphite Heaters
– Hot Zone Components for CZ crystal pullers
– Susceptors for Silicon Epitaxy
Glassy Carbon Coating Processing
- Performed by both Chemical Vapor Deposition (CVD) and Chemical Vapor Impregnation (CVI)
- Imperviousness to various gases and liquids
- Eliminates outgassing
- Dust free surface
Products
– Ion Implant Fixtures
– Semiconductor Jigs
– Graphite Heaters
– Graphite Crucibles
Anti-Oxidation Impregnation
- A penetrating treatment that reduces graphite oxidation rates at temperatures in excess of 500 degrees Celsius.
- Different graphite grades will oxidize at different rates depending on internal structure.
- Consult MWI for the best grade and treatment selection.
Products
– Molten Aluminum Equipment
– Graphite Shaft
– Graphite Rotor
– Graphite Pump
Pyrolytic Coatings
- Coating treatment that provides high purity, density and hardness
Products
– Graphite Crucible
– Semiconductor Jigs
– Impervious High Temperature Component
Ultrasonic Cleaning
- A proprietary method used as a both standalone process and step process for removing surface Foreign Object Debris (FOD)
Products
– Fuel Cell
– Semiconductor Jig
– Various Debris Free Applications