Don’t Just Store MSDs…Dry Them!

It is well-known that SMD components like QFPs and BGAs are moisture sensitive devices but LEDs and even ceramic capacitors are similarly at risk as cited by the SMTA. Indeed, even printed circuit boards increasingly must be handled as MSDs, especially Multilayer- and Flex- printed boards. These components absorb vapor throughout the surface which enters the basic material by diffusion. The issue is further intensified by ongoing miniaturization and the increasing application of extremely hygroscopic flame retardants in PCB manufacturing as well as higher temperature lead free reflow profiles.