Like Terry I'm afraid I never gave it a thought Bill. I've been busy eating cheese.
Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants – but debt is the money of slaves.” "The first time the Devil made me do it. The second time I did it on my own."
There must be some kind of soldering process going on along with some adhesives? Otherwise the connections to the proper pads/leads on the board would be electrically weak. Still, very impressive and much faster than the machines we had 20 years ago that did through-hole components and wave soldered them.