Parylene Coating
to achieve
- a hydrophobic , chemically resistant coating with good barrier properties against gases and water vapour
- an excellent electrical isolation with high breakdown voltages and low dielectric constant
- a bio-compatible and bio-stable coating (FDA certified class IV polymer)
- a conformal thin transparent coating, widely free of micro pores , also in narrow gaps on complex styled substrates
- a coating of substrates at room temperature in a vacuum chamber
selected properties of parylene (as pdf):
solutions
- check of ability of parylene coating for a special problem
- investigations of appropriate methods of pre-treatment to improve the adhesive properties of the parylene coating on the special substrate materials
- investigations of appropriate methods of post-treatment to improve the thermal, mechanical and UV light resistances of the parylene coating
- analysis of the layer properties at special requirements
Available equipment
Laboratory unit for parylene coating with maximum cylindrical volume for working: 22 cm (diameter) x 25 cm (height)
Suitable for investigations of the coating process, of the properties and application possibilities of parylene coatings
Furthermore the deposition of
- parylene-C and
- parylene-N
is possible with the following layer thicknesses:
- typical: 3 µm - 7 µm
- minimum: 200 nm,
- maximum: 10 - 15 µm
applications
- electronics (aerospace, medical instruments and devices, automotive, measurement instrumentation)
- protection and isolation of circuits and boards
- protection of sensors against humidity and aggressive environments
- protection of ferrites and magnetic materials
- medical engineering
- stents
- catheter
- pacemaker
- elastomeric sealing gaskets (reduction of friction)
- cannulas and probes
-
restrictions for application
- temperatures above 120°C for a longer time
- ultraviolet radiation