Screen printing - circuit boards

Screen printing printed circuit boards is typically performed in a clean, dust-free room using semi-automatic or fully-automatic screen printing presses. The most common PCB panel size is 53 x 72 cm, with the printing area around 50 x 70 cm. The printed panel may contain many PCB panels that are printed at once, and will eventually be separated.

Screens are stretched with precision, stable polyester meshes like SEFAR PME and SEFAR PMCE, two meshes specifically engineered by Sefar for competitive electronic printing. Solvent and/or UV pastes are used for printing the etch resist patterns, plating resist patterns and solder masks. Specially formulated solvent inks are used for legend printing.