Parylene is a protective polymer material that uses vacuum vapor deposition technology to form a protective film. It has been widely used in various fields, including circuits, circuit components and components, microelectromechanical systems, and more. Micron level coatings can provide very reliable protection on the surface of printed circuit components, without causing damage to the substrate, and are beneficial for component heat dissipation. The Parylene vacuum coating system adopts a pressure closed-loop control for the deposition process and an automatic bonding force enhancement device to ensure the quality and consistency of Parylene deposition.