Good morning Technetters. I am having some occasionally voids/pin holes on our PBGA. We are currently using NC293 Sn63/Pb37 Aim solder paste. The board is silver plated. Printing with a 6 mil stencil. Is it normal to have occasionally voids? We have bake our PBGA's prior to reflow, and also work with the oven profile. Any suggestions. Thank you Luis A Gallegos Automation Senior Technician SANMINA-SCI Pleasant Prairie WI Phone: 262 947-7700 [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------