Steve, Ron We did trials with boards manufactured on a horizontal HASL equipment that had very flat surfaces. - Minimum pitch produced: 0.3mm - Smallest chip capacitor: 0603 - BGA pitch 1.27mm We didn't see any problems, however we only did 50 PCB's. I believe a problem might be that the tin layer on the pads is very thin. So shelf time might be short ( Intermetallics ). Best regards Guenter ############################################################## 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 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 ##############################################################