Infrared Reflow Process

Here is a great animation of that oven, (you might recognize it correctly as an advanced industrial kitchen toaster oven) Starting at 1:25 in the video, you'll see the actual "SOIC & SOT View" you can imagine as they are "eaten" by the big scary oven. And in the bottom left "zoom" window you can see an excellent capture of a SOIC or SOT "leg" melting the microsphere "grey goop" of solder into "warm bubbly" molten solder during the warming-cooling profile of the oven.