> !!!HELP!!! > > We are experiencing a strange failure in a circuit board and I hope > someone can point out the failure mechanism. > The boards in question fail with trace opens when cold, heat the pin with > an iron and the open trace reconnects. The boards in question are 0.093" > thick Getek, 6 layers (4 rout - 2 planes), with 0.015" trace and 0.010" > spacing (we ain't talkin' high tech here :<) ). We have sectioned the > holes in question and see really clean plating and pad junctions, no smear > or nai-heading. Any suggestions as to cause? > > Jeffrey A. McGlaughlin, C.I.D. > Sr. PCB Designer > Battelle Memorial Institute > Columbus Ohio > [log in to unmask] > > ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8d ############################################################## 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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################