Solder application to a circuit board

摘要

Solder is applied to a circuit board 7 by dipping the board into a bath 1 of molten solder 3, the molten solder having a layer of oil 5 on top. The solder is dipped into the bath by rotating it along a path that is substantially coplanar with the circuit board. This is achieved by supporting the board on a carrier 9 which in turn is attached to a motor shaft 11.