Hi Pankaj ,

I found following text on the internet:
IV. WAVE SOLDERING
Early attempts at soldering large numbers of electronic contacts at the same
time involved dipping the whole printed circuit board into a pot of solder,
or dragging the board across the upper surface of solder in a pot [6]. These
soldering techniques were vastly improved when an Englishman by the name of
Strauss came up with the idea of wave soldering. He modeled wave soldering
on a method used to coat cookies with chocolate.

Hope this is what you are looking for.



Jowan Iven

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