Selective soldering machines are a compromise solution in modern PCB Assembly (PCBA)processes. Despite the advancements in surface mount technology (SMT), electronic components still rely on traditional Through-Hole Technology (THT) due to cost or material constraints.
Even though most components on PCBs can be assembled using SMT, some electronic parts still require THT processes. While techniques like Past-In-Hole (PIH) or Pin-In-Paste (PIP) allow through-hole components to be used in SMT assembly or use selective mask wave soldering process, limitations persist due to component technology. As a result, selective soldering machines have emerged.