We have been exhibiting miniature size nodules on our panels for quite some time. These miniatue nodules resemble a slightly high brightner burn. I was wondering if anybody can give me a few suggestions to where I should look. Afew test I have ran were with bare laminate through a scrubber before plating. Nodules appeared on them. Afew more experiments were ran through different preclean lines and all led to the same result, nodules. My questions if anybody could help are: 1. Would a rectifier with too high ripple affect the leveling of copper plating? 2. We currently hot load our racks into the bath, the program is set up with a five second lag and raises from 0 amp to calculated amperage. So the panel sees 5 seconds of 0 amps before the rectifier applies voltage. Could this be a contributor? Timothy Gaylor *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************