Have you tried standard hot-gas rework machines such as Airvac DRS24, or OK/Metcal? Also there are hand-held small hot air rework systems such as those from Pace or Hakko. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Wednesday, November 14, 2007 2:07 PM To: [log in to unmask] Subject: Re: [TN] E-cap Removal Technique Victor and Technetters, The components I mention below are Nichicon SMT capacitors used within a lead-free reflow process. The majority of the leads are beneath the component, making heat transfer the absolute devil to accomplish. The three removal methods I referenced as currently being used include: 1. Dual solder iron heat transfer, with the irons being placed at each point for 90 to 120 seconds (concern with pad lift) 2. IC removal tool (concern with reflow of adjacent components) 3. Physical twisting of component, separating body from terminations (again, concern with lifted pads) In other words, I'm not really satisfied with any of our current techniques, but I also haven't been able to locate a lot of alternative (and effective) methods. Repair is not my specialty either, but some of our folks have asked me to look into this. Any help would be sincerely appreciated! Leland -----Original Message----- From: [log in to unmask] [mailto:[log in to unmask]] Sent: Wednesday, November 14, 2007 2:47 PM To: [log in to unmask]; Leland Woodall Subject: RE: [TN] E-cap Removal Technique Can you share these methods with me? I am not involved with rework but curious with the technique. The technique gives credence to the solder fillet when conducting x-ray imaging and cross sectional analysis. Are the leads reflowed at two different temperatures? Victor, -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Wednesday, November 14, 2007 9:03 AM To: [log in to unmask] Subject: [TN] E-cap Removal Technique Everyone, In your experience, what is the best method you've found to remove aluminum electrolytic capacitors from an assembly? We currently have about three different methods being used, and I'd really like to try to standardize the operation... Thanks in advance, Leland Woodall --------------------------------------------------- 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 -----------------------------------------------------