Ultrasonic soldering can play a major role in enabling the electronics (and other) industries to meet requirements for increased solderability of leads and the reduction in the use of CFC solvents.

In an ultrasonic solder bath ultrasonic energy is introduced into the molten solder by means of an "Energy Horn" or "acoustic probe" which passes through the side or bottom of the solder bath and is immersed in the solder.