Hi Bob - unfortunately there are a fair number of components today where the lead toe has a non-plated or sheared surface making those areas "non-wettable by design" so an inspection of the toe would not provide a visual indication of the reflow process. Dave Hillman Rockwell Collins [log in to unmask] Robert Kondner <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 10/30/2009 10:08 AM Please respond to [log in to unmask] To [log in to unmask] cc Subject Re: [TN] May the force be in the heel Hi, The one thing the TOE provides is an indication of reflow "Quality". The HEEL is more important but the TOE gives a visual indication of the reflow process. Bob Kondner -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Werner Engelmaier Sent: Friday, October 30, 2009 10:49 AM To: [log in to unmask] Subject: Re: [TN] May the force be in the heel Ioan?have you been unreliable again ;-(, Yes, for a gullwing lead, the most important part of the SJ is the heel fillet. Depending a the length of the lead foot, the toe fillet is not important at all (for a long compliant foot) or quite important (for a short stubby stiff foot). But in either case, the heel fillet is most important. Werner -----Original Message----- From: Ioan Tempea <[log in to unmask]> To: [log in to unmask] Sent: Fri, Oct 30, 2009 10:40 am Subject: [TN] May the force be in the heel Dear Technos, I keep hearing : "the force of the gull wing pin joint is in the heel". What is the truth of this affirmation? Werner, I must confess not having practiced much reliability issues after your class, so I must have forgotten stuff, but I don't remember you praising the heel. I'm in some polemics here and wouldn't want to falsely blast the other side. Thanks, Ioan Tempea, ing. Ingénieur Principal Fabrication / Sr. Manufacturing Engineer 30 ans déjà! - 30 years already! 950 rue Bergar, Laval, Québec, H7L 5A1 t : 450-967-7100 ext : 244 Mtl : 514-990-5762 f : 450-967-7444 [log in to unmask] <mailto:[log in to unmask]> www.digico.cc <http://www.digico.cc/> P N'imprimer que si nécessaire - Print only if you must --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------