The fantasy world of the elementary particles of the pvd coating machine, the elementary particles are active in a vacuum that is supposed to be "no matter"!

         Usually, we say that the universe is a vacuum without air. The word vacuum literally means "completely empty", "empty", nothing. However, a field inspection of the space near the orbit of the space shuttle revealed that there was still thin air there. Even in the sandwich of the vacuum packaging bag and the thermos bottle, there is nothing left. No matter what method we adopt, we cannot make what we call a vacuum really "no air". What we call a vacuum is nothing more than "a space with extremely thin air".
        The film layer is prepared in vacuum, including the simple substance or compound film of crystalline metal, semiconductor, insulator, etc. Although chemical vapor deposition also uses vacuum methods such as reduced pressure, low pressure or plasma, vacuum coating generally refers to the use of physical methods to deposit thin films. There are three forms of vacuum coating, namely evaporation coating, sputtering coating and ion plating.
        In the pvd coating machine, the atoms of the material in the vacuum chamber are separated from the heating source and hit the surface of the object to be plated. This technology was first used to produce optical lenses, such as marine telescope lenses. Later extended to other functional films, record aluminum plating, decorative coating and material surface modification. For example, the watch case is plated with imitation gold, and the mechanical tool is coated to change the processing redness and hardness.