Not exactly sure of the problem you are describing; however, you may want to talk to an expert at Dexter, the mask manufacturer. May I suggest that you contact: John Jandrey Dexter Electronic Materials Phone: 818-968-6511 e-mail: [log in to unmask] Regards, Larry Fisher Dexter Electronic Materials *************************************************************************** * 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] * ***************************************************************************