Wave soldering
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Wave soldering is a bulk soldering process used in printed circuit board manufacturing. The circuit board is passed over a pan of molten solder in which a pump produces an upwelling of solder that loo
A typical Wave soldered PCB assemblie
A simple wave soldering machine.
Contact times and shape of wave solder on underside of PCB
Surface-mount technology
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Surface-mount technology, originally called planar mounting, is a method in which the electrical components are mounted directly onto the surface of a printed circuit board. An electrical component mo
Wave soldering
…makes contact with this wave, the components become soldered to the board. Wave soldering is used for both through-hole printed circuit assemblies, and surface mount. In the latter case, the components are glued onto the surface of a printed circuit board (PCB) by placement equipment, before being run through the…
Surface-mount components on a USB flash drive's circuit board. The small rectangular chips with numbers are resistors, while the unmarked small rectangular chips are capacitors. The capacitors and resistors pictured are 0603 (1608 metric) package sizes, along with a very slightly larger 0805 (2012 metric) ferrite bead.
Surface-mount capacitor
A MOSFET, placed upon a British postage stamp for size comparison.
Assembly line with pick-and-place machines