Are we sure that this is not an electrically induced failure? Is the component serviing in an application that it cannot support? By designer are we talking EE or board layout designer? Guy Ramsey Senior Lab Technician / Instructor E-Mail: [log in to unmask] <mailto:[log in to unmask]> Ph: (610) 362-1200 x107 Fax: (610) 362-1290 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Phil Nutting Sent: Thursday, October 11, 2001 10:17 AM To: [log in to unmask] Subject: [TN] failing capacitors Here is an interesting question. We use Roederstein film capacitors (through hole configuration) in many of our boards. Typically all boards are run through our wave solder machine with the same recipe. The weird thing is that some of these caps fail either open or shorted but only on the boards belonging to one design engineer. Is this "full moon residue", a circuit design issue or is it possible a regular failure that no one else is complaining about? We keep track of our test failures and if this were happening on many other boards we should be seeing the data, but there is none. I'm interested in what your thoughts may be. Thanks in advance. Phil Nutting ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------