Parylene Coating Service

CMC provides access to parylene coating service through Advanced Coating. A thin film of parylene-c polymer can be conformally coated onto various devices, substrates, and circuit boards to provide protection against certain harsh environment conditions or to improve biocompatibility.


  • Protection of microsystem components or circuit boards against moisture, chemical corrosion, and dielectric breakdown
  • Biocompatible coating of CMOS/MEMS bio- or chemosensors and other biomedical device

Graphic showing a zoom in view of the concentric ring electrodes with parylene-c coating on the outside
A parylene coated neuro-electrode array device for the intra-oral electrotherapy application. Service provided by CMC through partnership with Advanced Coating. Picture courtesy of Prof. Miodrag Bolic at University of Ottawa and NorDocs Technologies.


  • Conformal coating is applied by a vapor phase deposition process
  • Thickness ranges from a few micrometers to tens of micrometers
  • Coating works better on a textured surface than a highly polished surface
  • Selective coating is available subject to device dimensions
  • Parylene is well accepted in medical device industry due to its good biocompatibility and low cytotoxicity


TBD with Prototyping Subscription

Get Support and Access

For engineering support questions and to request access, please email fab@cmc.ca

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