Paul, Looks like the PCB is single-sided without thru' hole plating. Check the following possibilities: 1. Resin smear on component lead - Usually happens to dip-coated or epoxy-sealed components. 2. High component lead thermal mass - Usually happens to heat sinks. 3. Vacuum effect - Happens when the component seats tightly onto the PCB, such as aluminum electrolytic capacitors with rubber base and snap-in leads. Hope it helps. KK Chin Artesyn Technologies Fremont, CA ############################################################## TechNet Mail List 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 web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################