Solderability of component leads, wire, terminals, and printed wiring boards (PFvBs) is a prerequisite
for assembly solderability. While that may appear obvious, solder defects caused by poor solderability
always have been common, so much so that many production people regard such defects as
inevitable. While the solderability is rarely bad enough to threaten the integrity of the connection,1.2
military soldering specifications3 often require that each connection be inspected for defects and that
those found be reworked. Not only is it expensive to look for defects, but rework poses a threat of
damage, particularly to boards. The process used to solder, or rework, a connection is limited in its
ability to overcome poor solderability, whether that process uses a soldering iron or the latest
automated machine