The Pin in Paste process uses solder paste printing and the reflow soldering process to create a solder joint for the through-hole technology. The amount of solder required for the solder joint is calculated in advance. The calculated solder volume is converted to the paste volume to be applied. It is important to use the information for the volume fraction of the metal content of the solder paste (approx. 50%). The required volume is then printed onto the PCB surface and into the via. Through-hole fillings of <60% of the PCB thickness have proven successful (no squeezing out of the solder paste during insertion). To ensure these values, it is necessary to partially cover the vias with a stencil bar. The volume can be additionally increased with the use of step stencils or solder mouldings.