We have identified a problem where burrs on FET tabs cut through the insulator (dry grease on Kapton), and short to the heatsink. To avoid this possibility, we now include a quick sanding operation at part prep. Very labor intensive, inconsistent, wasted time..... Anyone have similar problems? What do you do? Any automated equipment to do this operation? Thanks in advance. Joe Joe Wackerman Sr. Mechanical Engineer Parker Hannifin Compumotor Division http://www.compumotor.com voice 707-584-2522 FAX 707-584-8015 e-mail [log in to unmask] ############################################################## 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 <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################