I doubt that this was copper dendrites. Sincerely, Paul Reid Program Coordinator PWB Interconnect Solutions Inc. 235 Stafford Rd., West, Unit 103 Nepean, Ontario Canada, K2H 9C1 613 596 4244 ext. 229 Skype paul_reid_pwb [log in to unmask] -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Neil Atkinson Sent: July 5, 2012 2:51 PM To: [log in to unmask] Subject: Re: [TN] Copper Dendrites Thanks everyone for comments so far - haven't been on Technet for a while so it was good to get such good responses. Really miss Werner for questions like this... Actually we have never seen a failure for dendrites; however, we have a customer who has a past problem with another supplier due to dendrites on PCBs and as a result wants us to cover vias with solder resist or conformal coating. Tha, Neil ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________