PCBA protection

At SCEN, protection stages are performed in a sterile room, a controlled environment that reduces the risk of contamination during washing, coating, potting and special treatments. The absence of dust and particles promotes more uniform and durable protection, especially for boards intended for applications where operational continuity, insulation and reliability are critical requirements.

Before protective coatings are applied, electronic boards are washed to remove process residues, dust and contaminants. The automatic line enables washing and drying with controlled parameters, using solvents, water or ultrasound depending on the product. When ultra-fine cleaning and greater material adhesion are required, SCEN uses selective, safe and residue-free plasma treatments, ideal for high-precision electronics.

Coating protects boards from humidity, dust, chemicals and environmental stress through a thin, uniform protective layer. SCEN applies conformal coating over the entire board surface or selective coating only on the most sensitive areas, providing targeted protection without adding unnecessary weight to the device.

For critical applications, SCEN can use Parylene, an ultra-thin polymer coating deposited in vapor phase and under vacuum. This process makes it possible to obtain a conformal, uniform and pinhole-free film, capable of reaching complex geometries and areas that are difficult to protect with traditional coatings.

Thanks to its electrical insulation properties, barrier against humidity and corrosive agents, thermal stability, hydrophobicity, low outgassing and biocompatibility, Parylene is suitable for high-reliability applications in space, aerospace, medical, defense, applied research and critical environments.

Potting is indicated when the board or module must operate under particularly severe conditions. The board is encapsulated in insulating resins or gels which, once solidified, create a robust barrier against impacts, vibrations, infiltrations and external agents. It is a suitable solution for aerospace, defense, transportation, industrial and critical environment applications, where mechanical and electrical protection must remain stable over time.