Can some explain how adhesive printing works...I am assuming that we
     are talking about the adhesives that are used to hold passives and
     small SOPs on the bottom side of a PWB assembly... if you print the
     adhesive, how do you screen solder paste on the board also... or if
     the process is reversed, how is that done?...the passives that I have
     in mind are 0402 and 0603...I have seen boards that come from a PWB
     fabricator with ink dams to prevent bridging under the passives...are
     they actually thermoplastics that will hold the component if you cure
     the dams prior to reflow?