English to Spanish Tech/Engineering Electronics / Elect Eng soldadura de componentes electrónicos

Solder Wicking (also know as Solder Drainage) occurs when the solder flows away from the pad on a PCB, accumulates on the surface of the board and enters nearby via holes and tracks.

Usually, the component terminal has a lower melting point than the pad to which it is being soldered. As a result, the component terminal reaches its melting point before the pad and the solder flows away from the pad and accumulates in unwanted places.

See the image below, Solder is placed on the pads on to which a component is placed. Once the component is soldered on to the pad, the solder melts and flows towards the via hole and associated area.

Fuente: https://www.pcbdirectory.com/community/what-is-solder-wickin...