What is the principle of vacuum coating?
Physical vapor deposition technology refers to the use of various physical methods, under vacuum conditions vaporization into atoms and molecules or ionization into ions, electroplating materials directly deposited on the surface of the substrate.
Characteristics of vacuum coating
Compared with wet coating technology, vacuum coating technology has the following advantages:
(1) The selection of film material and substrate material is wide, the film thickness can be controlled, and a variety of functional films with different functions can be prepared.