Round Led Lighting Aluminum PCBA Assembled With 5630 LEDs
Operating conditions for selective wave soldering in PCB assembling
There are still many PCB assembling using Wave Soldering process, but most are Selective Wave Soldering rather than dipping entire PCB boards into tin stove for early stage process.
Selective wave soldering still use the original tin stove, the difference is the board needs to be placed in a tin stove tray or carrier, and then only dip tins for the wave soldering parts exposed, and other parts no need be dipped are coated to be protected by films, it is a bit like in the swimming pool covered by a life buoy, the area without life buoy would not touch the water, same with tin stove, the place is cladded by film won't stick to tin, accordingly won't have the problem of tin re-melt or components missed.
But not all of the PCB board can be used for Selective Wave Soldering process, there are some restrictions on the design, the main condition is that these parts have been selected for Wave Soldering must have a certain distance with other don't need to Wave Soldering parts, then a tin stove carrier can be made.