Electronics soldering

Electronics soldering is the joining process used in the production and testing of electronic circuits: low-melting-point metal alloys — tin-lead (Sn60Pb40) or lead-free alloys (Sn96.5Ag3Cu0.5, etc.) — are melted at typical temperatures between 180 and 260 °C and deposited on the joints between conductors and components, creating upon solidification an electrically conductive and mechanically sound connection.

Operating modes range from manual soldering with a tip iron (essential for prototyping, repair and through-hole assembly) to automated reflow — where the complete circuit, with solder paste previously screen-printed and SMD components placed, passes through an oven with a controlled thermal profile that simultaneously melts and solidifies all joints. Rework stations (hot air, BGA reballing) handle the removal and replacement of complex components. In the maker context, soldering is a fundamental skill for anyone working with Arduino, microcontrollers, RF modules and any project requiring the assembly of custom boards.