Steve, If you are interested, I may find my lab pictures from the time I studied dendritic growth (silver growth vs. time and voltage). I think the report itself is gone, because I didn't have time to digitize everything, instead I put a cigarett lighter to it, because nobody were interested at my company that time. Ingemar Subject: [TN] Was; Electromigration Now; Electrochemical Migration Hi ya'll! After all the replies that were sent to me, I think what I have is electrochemical migration. I wish I had a microscope where I could take a picture to show you, but I'll describe things again. ############################################################## 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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################