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64 SMT Magazine • April 2014 CONFOrMal COaTiNG OvEr NO-ClEaN FlUX continues fEATurE karl Seelig is vice president of tech- nology at AiM Solder. he can be reached at Tim O'neill is regional manager at AIM. He can be reached at testing be performed to ensure the coating provides the intended protection and meets the mission profile of the assembly. The incorporation of low- standoff devices and the ability to completely remove water soluble organic residues is driving more assem- blers to consider a no-clean process. The risk assessment of water soluble versus no clean in these applications consistently favors no clean. The cost savings in decommissioning the wash process and equipment is another major reason for migrating to no-clean chemistries. Finally, as conformal coating continues to be the only accepted practice for tin whisker mitigation, along with the looming expiration of the RoHS exemption, we predict no-clean chemistries and the subsequent coating of the resulting residues will become increasingly prevalent over time. SMT figure 17: White light/good adhesion. CliCk To View Video Interview leo P. lambert, vP at EPTAC, speaks with guest Editor ray Prasad on the show floor at IPC APEX EXPO 2014 about EPTEC's role as a leader in hi-tech training. ray prasad Talks Training with EpTaC by Real Time with... IPC APEX EXPO 2014

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