I think it is inaccurate to say there are no standard protocols. I do agree that one approach will not cover all needs, but most of the commonly used test standards allow you to modify the protocol based on specific needs or endpoints. MIL-STD-810 is a good starting point for reliability and covers a wide range. DO-160 is another good test regimen. I think that if you to testing to these standards, you get an excellent idea of reliability. You then only have to augment the testing with product specific tests (e.g. concrete drop tests for cell phones). Doug Pauls David Douthit <[log in to unmask]> Sent by: TechNet To <[log in to unmask]> [log in to unmask] cc 03/10/2005 06:28 Subject PM Re: [TN] BGA Reliability Test Protocol Please respond to TechNet E-Mail Forum <[log in to unmask]> ; Please respond to David Douthit <[log in to unmask]> Bob, That's the whole idea! There are none. There some recommendation that are very general in nature but there is no longer a "one size fits all" testing standard. You must determine the end use environmental conditions and life warranty requirements for each product and test accordingly. You must learn to correlate testing to field conditions (not easy - you need a lot of experience). This is causing serious soul (sole for Dewey) searching for Pb free builds! Good luck! David A. Douthit Manager LoCan LLC bob wettermann wrote: >Dear Technetters: > >In reviewing the myriad of BGA reliability tech papers there seems to be little commonality in the type of test protocols. There are tests that are industry specific, device vendor specific and customer specific. > >What guidance in terms of minimum mechanical solder joint strength and reliability testing would the knowledgeable designers (for CLASS II products)have for us? (We are NOT designers of circuit boards, systems or devices). Any test protocol standards? What would be the acceptance criteria for pass/fail be? What type of measurements would be required as a minimum? > >Best Regards >Bob Wettermann > > >Bob Wettermann > >--------------------------------------------------- >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 >----------------------------------------------------- >PH 847-767-5745 > > > > --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------