Actually, I have try 4 runs of sample by Omikron process in Taiwan and I found that solderability performance is very poor. Nobody can help me to solve this trouble issue immediately.I maybe get something wrong, or the Omikron process get homesick in Taiwan. Howard > -----原始郵件----- > 寄件者: [log in to unmask] [SMTP:[log in to unmask]] > 傳送時間: 1999年2月12日 AM 02:13 > 收件者: [log in to unmask] > 主旨: Re: [TN] Immersion Tin > > Rudy, > This is the response I sent to Les. > > Les, > What kind of tin immersion bath are you questioning? I work with > the > Omikron White Immersion Tin. In the case of Omikron you would keep > the copper > concentration under 4,000 ppm. In most cases under normal use the > concentration will stay below 1,000. > If you cool the bath and filter it with a one micron filter you > will find > the bath stays within limits fairly easy. > > Stephen M. Wentz > Florida CirTech > > ################################################################ > TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" > section for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################