On so Commander Kinsey thinks.
What do you call them, then?
When I got to introduce surface mount components at Cambridge Instruments around 1988, solder waves were one way of of getting the solder paste to fuse on a production line. We had to buy a Groatmoore hot air blower for prototypes and rework. The other production line option was focussed infrared heating, with a hot air preheat to get the whole board close to the solder melting point. That could handle boards with components of both sides of the board.
Assembling and soldering surface mount boards was a job we sub-contracted. If we ever set up to do that in-house, it happened after I'd moved on.