For the deposition of thin metal films, processes are used in chambers where the vacuum has been realized: this allows the metal atoms to move from the evaporation source to the surfaces to be coated without encountering the impediment of air or other particles and carry out the processes in a pristine environment.
For some materials it is also necessary to pre-treat the surface in order to make it adequately uniform before finishing.
SuNaGen’s modern facilities make it possible to carry out the complete process within it, facilitating the rigorous control of each phase.
PVD (Physical Vapor Deposition) magnetron sputtering
Sputtering provides a combination of advantages that has no equal: it is an economically efficient production method that generates the thinnest and most uniform surface layer, it is a dry process at low temperature and is totally environmentally friendly as it is free from emissions.
Being a cold transfer, it can be used to deposit conductive or insulating materials on any type of substrate, including metals, ceramics and temperature-sensitive plastics.
The process has an automatic repeatable deposition control.
Plasma and PECVD (Plasma-Enhanced Chemical Vapor Deposition)
Plasma technology makes it possible to clean and modify the chemical and electrostatic characteristics of any type of surface.
Plasma chemical vapor deposition (PECVD) is a dry and clean process that takes place at room temperature and is an excellent alternative to create a variety of thin films at lower temperatures than those used in CVD reactors, without effects quality negatives.
Films created with PECVD have good adhesion and uniform distribution.
Pretreatment and UV protection / painting processes
Plastic and metallic materials with a porous surface require preparation before finishing with PVD Sputtering.
SuNaGen has an ultra-modern and innovative clean-room pre-treatment system that uses 100% solid UV coatings: the quality of this painting process allows obtaining defect-free surfaces, an essential requirement for subsequent metal deposition. The same process is then used for the eventual final protection.
Polyethylene (PE) is one of the plastic materials treated, which we are able to treat directly (without bottoms).