Hi All, We've made boards for a customer for a few years. They've been very satisfied with HASL finish. Last month they started rejecting approx 40% of boards received (3 lots) because their P&P camera couldn't locate the fiducials. The coating looks typical to us (thickness & smoothness). Customer can't see any difference between good & bad boards until they're on the P&P machine. They say they haven't changed equipment, processes or operators. We say the same. No HASL hassles from other customers in this time period. We tried reworking by wicking solder from the fiducials. Customer rejected approx. 20% for the same reason. They also say that boards from another vendor are working fine. Any comments/ ideas? Mark --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------