Article: Mixed technology gets selective: selective and fountain soldering can reduce skips and opens over traditional wave processes.(Cover Story)

Wave soldering is the predominant and oldest of technologies still commonly used for soldering PCBs. Wave soldering, which came about in the 1950s, is still the most efficient method for soldering through-hole components and is capable of producing high solder joint quality. With surface-mount technology came reflow soldering, developed as an alternative method of mass soldering components to PCBs. Reflow soldering also proved an efficient process capable of producing good quality solder joints. Most boards today are a combination of SMT and through-hole. These mixed-technology boards typically use both of the mass reflow processes in some form.

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