In which surface treatment technologies is plasma technology used? What are its specific roles?

I (an employee of Alpha Plasma) would like to elaborate from the field of semiconductors and some industrial products that I am engaged in: 1. Cleaning is done to change the surface tension before bonding is required. A microwave plasma source ionizes the reaction gas (O2/H2/N2/Ar, etc.) that is passed through according to the process selection, and then a chemical reaction occurs between the ions and the organic pollutants on the surface, and an exhaust gas is formed that is extracted by a vacuum pump. The surface of the cleaned material is cleaned. After testing, before and after cleaning the surface tension of a very large change in the next step to help hit the line or bonding; 2, the surface of the material before spraying surface modification to improve the spraying effect. Some chemical materials such as PP or other chemical materials, itself is hydrophobic or hydrophilic. The same through the above process gas pass, ionization, reaction, the surface modification, so that it becomes hydrophilic or hydrophobic, to facilitate the next step of spraying. 3, plasma there is a spraying technology and thermal spraying technology together, mainly for large metal surfaces such as direct spraying, the efficiency and effect is very good. Not I specialize in the field can look up their own information.