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Wave Soldering

What is wave soldering?

Wave soldering is an automated soldering process used in electronics manufacturing where a printed circuit board (PCB) is passed over a wave of molten solder. The solder wave flows upward through openings in the PCB, creating electrical connections between component leads and circuit traces. This method is primarily used for through-hole components and provides fast, consistent soldering for high-volume production, though it has largely been supplemented by reflow soldering for surface-mount technology.

Related Terms

Reflow Soldering

Reflow soldering is a surface-mount technology (SMT) assembly process that uses controlled heat to melt solder paste and permanently attach electronic components to printed circuit boards (PCBs). The process involves applying solder paste to PCB pads, placing components on top, then heating the entire assembly in a reflow oven through a precise temperature profile that melts and solidifies the solder joints. This automated method is the standard technique for manufacturing modern electronics, allowing for high-density component placement and consistent, reliable solder connections across the entire board simultaneously.