The surface finishes commonly used on printed circuit boards (PCBs) have an effect on solder paste performance in the surface mount process. Some surface finishes are non-planar like hot air solder level (HASL) which can lead to inconsistencies in solder paste printing. Other surface finishes are difficult to wet during reflow like organic solderability preservative (OSP). What is the overall effect of surface finish on solder paste performance? Which solder paste is best for each surface finish? It is the goal of this paper to answer these questions. Speaker: FCT Field Application Engineer, Tony Lentz

About Tony Lentz

Tony Lentz has worked in the electronics industry since 1994. He worked as a process engineer at a circuit board manufacturer for 5 years. Over the last 14 years, Tony has worked for FCT as a chemical laboratory manager and facility manager. Tony has extensive experience doing research and development, quality control, and technical service with products used to manufacture and assemble printed circuit boards. Tony has been involved with APEX for many years. He holds B.S. and M.B.S. degrees in Chemistry.