The PlasmaShield plasma conformal coating process from Semblant Ltd. is designed to prevent solids and liquids from contacting electronics, protect against vapor damage and mitigate tin whiskers. The process can reduce or eliminate the need for masking and is said to produce a continuously uniform and pinhole-free coating. According to the company, coating continuity is crucial in protecting against moisture, salts, harmful liquids, destructive gasses, tin whiskers, creep corrosion and other contaminants.
The plasma deposition of thin coating also simplifies rework. Coating removal is not required before repairing or replacing components, reducing the risk of damaging the printed circuit board during the removal process. Concerns related to shelf life, potting life, curing time and operator safety also are eliminated, the company says.
The PlasmaShield conformal coating solution is suited for industries such as military, aerospace and industrial equipment; automotive electronics; medical devices; and other traditional high-reliability segments; as well as high-volume electronics manufacturers.