We follow HDB-217 and 883 and 1553 stds in essential. One NASA example: http://www.moasoftware.co.kr/board2/data/design/dfr07.pdf Another typical example is this good one from EXIDA: http://www.prelectronics.com/filer/9202_FMEDA.pdf However, the handbook refer to one decade or more old statistics, so for many new components derating and failure rate figures etc are not available. You have to make your own FMEA, Arrhenius nomograms and all that stuff. I'm not an expert but have been involved frequently in the field. We had several people with a PhD degree working with Failure Data Analysis, but nowadays only one guy is left. The reason is that the reliability of many processes has been improved a lot. One or two decades ago, we had boxes with hundreds of components waiting for registering and analysis. Today nearly nothing. If there are any issues, we are causing them ourselves in the manufacturing process. And even these are few nowadays. Those of you who have been involved, remember all the problems with tantalum caps? Or CMOS? Or humidity in DIPs? Ahora nada de estos. Best you can do to get answer on your questions is to call someone at NASA (e.g. Mr Brusse, who use to read TN mails). Or ESTEC. Or Vernier Anglemajor. Inge ----- Original Message ----- From: "Kane, Amol (349)" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, March 06, 2009 3:48 PM Subject: [TN] Failure Data Analysis Techniques Dear Technetters, I am doing some research (for my PhD dissertation) on the common Failure Data Analysis Techniques (or software) people are using in the industry to analyze their failure data. Specifically, end of line SMT defects across all assemblies and product lines. I realize that failure data is something that all companies will not discuss. I am not looking for results, just methods that you might be using to arrive at informed conclusions. Any responses (offline or on the forum) will be greatly appreciated Regards, Amol WARNING: Export Control This document may contain technical data within the definition of the International Traffic in Arms Regulations (ITAR), and subject to the Export Control Laws of the U.S. Government. Transfer of such data by any means to a foreign person, whether in the United States or abroad, without proper export authorization or other approval from the U.S. Department of State is prohibited. CONFIDENTIALITY NOTICE: This e-mail, and any attachments, is for the sole use of the intended recipient(s) and may contain information that is confidential and protected from disclosure under the law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail, and delete/destroy all copies of the original message and attachments. Thank you. --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------