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April 2015 cover

 

FEATURES

IPC APEX RECAP
Going Vertical

The annual IPC trade show was bigger and more built up than ever, which had the (unintended) net effect of making attendance look like it was down. Still, the show had its share of innovations – albeit primarily on the assembly side – that made the trip to San Diego worthwhile.
by Mike Buetow

CONFORMAL COATINGS
IPC-CC-830B vs. the ‘Real World’

A variety of commercially available, internationally qualified conformal coatings were applied in varying thicknesses to SIR coupons by dip, spray and selective-spray, then subjected to thermal shock. The results demonstrated that the flat FR-4 test board used for IPC-CC-830 qualification does not adequately stress conformal coatings during thermal shock testing, leaving open the question whether the standard is sufficient for simulating actual use environments.
by Carolyn Taylor and Phil Kinner

 

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