We have a 12 layer board with a heavy ground layer that had three edge BNC type connectors installed using a mini wave. The circuitry tracing away from the connectors is surrounded by vias. There is a distinct lightening of the board material I have typically associated with measling. This lightening however, doesn't have any fiber crosshatching I am used to seeing with measling, not does it look like classic delamination. I have documented the event as delamination for lack of a better description. The opposing consensus is that it is "merely" soldermask discoloration. Without classic delamination or measling features, I don't feel I have a leg to stand on to call it anything other than that. (Don't worry though - both sides feel the Customer needs to review the board no matter WHAT the defect is). Does anyone have any opinions? Jan Pelchat ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################