At 10:14 AM 9/21/99 -0700, Dave Hoover wrote: >4) Imm Tin does not have such a pronounced "skin effect" as > ENIG does. (Where the signal travels along the gold and the > current along the base of the trace <copper>. The eless Nickel > makes this even more pronounce in microwave.) Yep, it's the Ni the RF guys dislike. It's way lossy. ############################################################## 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 ##############################################################