Dave, Alot of people are using Plasma cycles to treat the PTFE surface prior to PTH. Some popular cycles are He and O and 80%H 20%N. It depends on the application and the plasma equipment being used. This of course can be tested empirically by taking a PTFE surface treating it and measuring the wettability or contact angle of a solution applied to the surface. If you would like more information please contact me offline @ 630-834-8676. John Bushie Technical Service Manager Taconic ADD ------------------------ From: Dave Hoover <[log in to unmask]> Subject: [TN] Plasma and PTFE Date: Mon, 27 Sep 1999 11:37:00 -0700 To: [log in to unmask] 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 ############################################################## ---------------End of Original Message----------------- -------------------------------------------------------- Name: John Bushie E-mail: John Bushie <[log in to unmask]> Date: 09/28/99 Time: 07:16:11 This message was sent by Z-Mail Pro - from NetManage NetManage - delivers Standards Based IntraNet Solutions -------------------------------------------------------- ############################################################## 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 ##############################################################