SMT, February 1st, 2007
SINCE THE BIRTH OF THE PCB, THERE HAS BEEN A NEED TO TEST FOR RESIDUAL IONIC CONTAMINATION, WHICH CAN LEAD TO CORROSION AND DENDRITE GROWTH. WHETHER ON BARE BOARDS OR FINISHED ASSEMBLIES, CONTAMINATION CAN CAUSE CURRENT LEAKAGE ACROSS INSULATING SURFACES - RESULTING IN SHORTS. THIS ARTICLE EXPLAINS ADVANCEMENTS IN IONIC CLEANLINESS TESTING, INCLUDING HEATED DYNAMIC IONIC CONTAMINATION TEST SYSTEMS AND THEIR BENEFITS.
The need to test for residual ionic contamination has been around since the inception of the PCB. Ionic contamination can lead to corrosion and dendrite growth. Whether on bare b...
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