Ted We have been switched to TFT about 6 months. 10%-15% Speed increase and consumption decrease. PRINT&ETCH capability is dependent on chemical and machine characteristics, with the latter being much harder to control. We have had no glitches and don't know of any negatives. -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Ted Wiktorowicz Sent: Wednesday, January 12, 2000 7:50 AM To: [log in to unmask] Subject: [TN] Because I have not recieved any response, I am trying to re-send an earlier request in regards to Thiourea free alkaline etchant. If anyone has had any experience with it I would very much appreciate any feed back. - has the claimed benefits (less undercut, higher etching rates, less attack on print & etch resists) been realized? - do you see a lower consumption of TFT etchant in comparison with your old alkaline etchant - if so can you guesstimate a percentage? - is the switch over fairly easy? - are there any negatives to switching? Thanks in advance for your help Ted ############################################################## 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 ##############################################################