Good Morning Technetters.... I have a VIA tenting / plugging question. For quite some time, we have been requiring a 100% plug in our VIA's. LPI mask was then applied over the plug giving us tented VIA's on both sides of the board. Within the last year and a half, we started receiving boards from offshore suppliers (China). We noticed that the VIAS were not plugged. The solder mask was applied and whatever material ran into the holes was what they delivered. After reviewing, we found that most, if not all, offshore suppliers could not plug the VIAS's. By the way, our domestic suppliers had no trouble with this process. Anyway, with the considerable cost savings achieved by using China as our supplier, we modified our spec, removing the plug requirement. Now when we receive our boards from our domestic supplier, all of our VIA's are exposed, i.e. not tented with soldermask. We were told that they could give us a partial plug and then tent on one side, but not both. I need some advice. We want the VIA's to be tented on both sides. How would you accomplish this? Thanks in advance... Lou Takach Union Switch & Signal Pittsburgh, PA 412-688-2574 --------------------------------------------------- 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 847-615-7100 ext.2815 -----------------------------------------------------