We have been using Enthone DSR-3241 soldermask for 6 years now and have never UV bumped the mask. We do not have a solderball problem with the soldermask using the no UV bump process. What size of balls do you have and how many? ______________________________ Reply Separator _________________________________ Subject: Solder Balls Author: [log in to unmask] at corp Date: 2/7/96 2:56 PM Has anyone experienced solder balls with the elimination of UV bump after thermal cure and specifically with Enthone mask? How does one go about solving the solder balls problem? Thanks Denis Yabo 703- 450-2600 EMail: [log in to unmask]