Vacuum evaporation coating (referred to as evaporationcoating) is in a vacuum environment, the evaporator heated film material to make it gasification, the film material evaporation of the particle stream directly to the substrate and the substrate deposition, the formation of solid film technology. Vacuum evaporation is PVD technology in the development of the earliest, more widely used town film technology, although later development of sputtering and ion plating in many aspects than the vacuum evaporation superiority, but the vacuum evaporation town film technology still has a lot of advantages, such as equipment and process is relatively simple, both the deposition of very pure film, but also can be prepared with a specific structure and properties of the film layer, etc. The main disadvantages of this method are that it is not easy to obtain films with a crystalline structure, the adhesion of the film on the substrate is small, and the process repeatability is not good enough.
In recent years, due to electron bombardment evaporation, high-frequency induction evaporation, as well as laser evaporation and other technologies in the vacuum evaporation coating technology in the general application of the technology, so that this technology is more perfect, and widely used in machinery, electric vacuum, radio, optics, atomic energy to find the city.
Post time: Aug-17-2023