ScreenPrinting

Blank PCBs need to have circuit pathways adhered to their surfaces before any electronic components can be added.
A solder paste machine is a type of printed circuit board equipment that uses a screen printing process;
a screen mesh with a particular circuit pattern is placed across the PCB’s surface while solder paste is forced through the openings.
The paste fastens to the PCB’s surface in the shape of the predetermined circuit pathways.