I am trying to understand how wave soldering works. Unfortunately the Wikipedia article has has left me unsure about the process:
- Is the entire board with its components quasi-immersed in liquid solder while it passes through the wave? (If not, the following question probably make no sense.)
- If the board cuts into the wave, how is the wave maintained?
- Why does this not leave superflous solder residue on the board?
Double-Sided SMT soldering
How are double sided boards with SMT components soldered? How is it prevented that the components on one side fall off?