The first step on the SMT (surface mount technology) assembly line is applying solder paste and/or glue on printed circuit boards. This process is carried out using the SR3100 screen printer manufactured by TWS Automation. Precise steel mesh along with the measurement of reference points allows the accurate adjustment of the position of the screen in relation to the PCB. The automated process for applying solder paste allows uniform coating of soldering points which is reflected in the quality of solders.