Dear Lenny: I saw a cupric chloride DES line which has a 8 fpm maximum speed, while most ammoniacal DES lines (about same length or shorter) can run as fast as 15 fpm. Yu-Shan Han, Ph.D., P.E. Lead One Technology, Inc. Seattle, WA (206) 368 - 8429 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Lenny Kurup Sent: Wednesday, September 08, 1999 11:51 AM To: [log in to unmask] Subject: Re: [TN] Ammoniacal vs Cupric chloride Etcher. > What system etches faster, ammoniacal or cupric chloride? Based on > typical PCB manufacturing, and common chemistries i.e. nothing too > fancy and juiced. > > LK ############################################################## 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 ##############################################################