Alex, Don't have any reliability data for you, but you can look over a procedure we have that covers a variety of Component Modifications and Additions at: http://www.circuittechctr.com/guides/6-3.htm <http://www.circuittechctr.com/guides/6-3.htm> . Jeff Ferry CEO Circuit Technology Center, Inc. http://www.circuittechctr.com <http://www.circuittechctr.com/> [log in to unmask] 978-374-5000 x14 Sign up for our Free E-mail Newsletter at: http://www.circuitnet.com/subscribe.htm <http://www.circuitnet.com/subscribe.htm> -----Original Message----- From: Alex Krstic [mailto:[log in to unmask]] Sent: Tuesday, October 15, 2002 3:48 PM To: [log in to unmask] Subject: [TN] Stacking of components (SMD) Revisited Hi all. Well I have gone through the archives hoping to find the "definitive" answer to no avail. Does anyone have quantitative reliability data on stacking of SMD components? All past discussions end in the conclusion that you can do it but don't do it if you don't have to. Alex Krstic NovAtel Inc. ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------