Offended, offended, hell Dave, I never get offended or pissed off. I do remember doing some micro vias using plasma back in the late 197mmmm's and early 198mmm's. It worked for that, polyimide etchback, and still should work for anything else needing a good "scrub" but the semi folks have the best handle on that now - don't they? Where are they now? Earl Moon ----- Original Message ----- From: Dave Hoover <[log in to unmask]> To: <[log in to unmask]> Sent: Monday, September 27, 1999 11:37 AM Subject: [TN] Plasma and PTFE > Many Moons ago.....(No offense Earl) > Some R and D efforts were being demonstrated successfully > with plasma etchings PTFE with Helium. (I guess they also > did some flex that way too) Anyways....Is anybody still > doing this or is it still R and D???????? > > Curious minds are inquiring...... > > Dave Hoover > > ############################################################## > 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 > ############################################################## ############################################################## 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 ##############################################################