Parylene Coating Services for Extreme Environmental Protection

Parylene coating protects electronics in extreme environments with ultra-thin, uniform coverage (0.25-0.75 microns). This liquid-free coating provides superior protection for components exposed to moisture, chemicals, and temperature extremes. At ECT, parylene coating services are available in Parylene C and Parylene N for aerospace & defense, medical, and automotive applications.

Parylene coatings are applied in a unique batch process at room temperature using a chemical vapor deposition (CVD) process.  Ahead of going into the CVD equipment, boards are prepared by applying light-curable maskants, adhesive dots, or tapes to prevent the film from entering critical keep-out areas.  Based on the application requirements, dimer C or N is selected.  A precise amount of dimer powder is inserted under a vacuum and heated until vaporized.  The vapor gas particles then enter the room temperature deposition chamber where the gas settles and encapsulates the entirety of the PCB with absolute precision.  

Both Parylene C and Parylene N are clear in appearance, making them ideal for optical applications where coating transparency is critical.  The process is completed at an ITAR and ISO 9001-2015 registered facility, operating in accordance with industry standards IPC-A-610H and J-STD001H.