Dear Technetters, During production of the XXXX boards, we found that that the inner tracks were getting opened(discontinuity) and nearly 50% of the boards were failing during the testing. On further analysis we found that the copper thickness of the inner layers were less when compared to the outer layers. On confirmation with PCB supplier we found that the Finish Cu thickness was maintained at 70/35/35/70 micron whereas our gerbers sent to supplier calls for 70/70/70/70 micron. The issue was discussed with our customer and they informed that they cannot accept the boards since they are using the boards for a high power applications(2.5KVA) and the tracks cannot withstand this kind of voltage which will cause field failures. Please find the below information of the PCBs and the PCBAs which has to be scrapped because of this. Assembled 50nos Assembled 110nos We and our customer are now in a very desparate situation and we need to turn up ASAP. Now the details are as follows: Process: ROHS Usage: UPS No. of layers: 4 How do I salvage the assembled boards? Thanx Badri Thanks&Regards, Dinesh Disclaimer: =========== This E-mail may contain privileged information and is intended solely for the addressee. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. If you have received this mail by mistake, please inform us immediately and delete this mail. Any information expressed in this mail does not necessarily reflect the views of Avalon Technologies (P) Ltd . Avalon Technologies(P) Ltd shall not be responsible nor liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system. Avalon Technologies(P) Ltd does not guarantee that the integrity of this communication has been maintained nor that this communication is free of interceptions or interference.We have taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message. We cannot accept liability for any loss or damage caused by software viruses. Thank you for your cooperation AVALON TECHNOLOGIES MAY MONITOR ALL INCOMING AND OUTGOING MAILS. ************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************* --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------