We are about to start using immersion tin PWBs (white tin) , the boards we currently use are HASL and OSP. Are there any changes with the SMT process, component termination finish or reflow process when white tin boards are used. I know that white tin provides a better pad finish than HASL, similar to OSP, but wihout the organic coating. Any comments. Any iformation would be appreciated. Jorge Rodriguez Process Engineer Conexant Systems Inc ############################################################## 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 ##############################################################