It's covered in FS type micro spray from thick film to thin film.
The miracle of select spray for photo solder mask coating by Shimada Appli G.K.
The film-forming reach to the corrugated surface is outstanding.
This select spray gun is used for thin film coating with solventborne coating material, dispersion coating material and waterborne material. The select spray gun can spray nano-evenness coating with automatic gun to use 3 dimensions axis (X-Y-Z) robot driven by thin film coating software. This is a spray gun that circulates around the liquid that contains phosphor and is sprayed.
Shimada Appli G.K. is the venture combination company which performed a company in 2011, and sells the precision spray valves to each industry of semiconductor, PCB, battery, bio and food based on paint coating technology experience more than 40 years.
https://www.youtube.com/watch?v=mVXts_NrdsQ