Hi Dave, I wrote a paper back in 2007 "PWB Reliability - the next step". It was originally published by the Emerald Group. It looks like the Emerald Group wants to charge to read the paper but here is a link where the paper is available at no charge. http://www.circuitmart.com/pdf/thermal_cycle_testing.pdf This may be of interest. It shows the thermal cycles to failure in PTHs are reduced by about 50% due to lead/free assembly on well fabricated PWBs. Sincerely, Paul Reid Program Coordinator PWB Interconnect Solutions Inc. 235 Stafford Rd., West, Unit 103 Nepean, Ontario Canada, K2H 9C1 613 596 4244 ext. 229 Skype paul_reid_pwb [log in to unmask] <mailto:[log in to unmask]> -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman Sent: September 23, 2010 12:31 PM To: [log in to unmask] Subject: [TN] Leadfree Plated Thru Hole Thermal Cycle Reliability Paper Hunt Hi folks! I am on a fishing exposition: I am looking for plated thru hole thermal cycle reliability reports/papers. I have a ton (literally) of surface mount technology investigations but we have just finished up a leadfree wave solder alloy thermal cycle solder joint integrity investigation and I am in search of published data sets so I can do a results comparison. I do have the papers by C. Hamilton/Celestica which are very good but I am in quest of additional report data sets. If you know of any published reports, please drop me an email. Thanks in advance. Dave Hillman Rockwell Collins [log in to unmask] ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- 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 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- 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 -----------------------------------------------------