What solder did you use for the wave?? We did our first lead-free run not too long ago. Amol Kane M.S (Industrial Eng.) Process Engineer Harvard Custom Manufacturing 941 Route 38 Owego, NY 13827 Phone: (607) 687-7669 x349 [log in to unmask] -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Stephen Gregory Sent: Thursday, March 02, 2006 5:15 PM To: [log in to unmask] Subject: [TN] As long as we're talking about silver... Hi All! I figured as long as we're talking about silver, you might take a look at some PTH solder joints on some boards we just built with an immersion silver finish. I'm posting these pictures because this is the first production board we've built here that has an ImAg finish, and I would like to know if this appearance is pretty typical. Go check out: http://stevezeva.homestead.com/files/Immersion_Silver_PTH.jpg http://stevezeva.homestead.com/files/Immersion_Silver_PTH_2.jpg This particular board went through double-sided reflow, and then the PTH was soldered using a selective wave solder pallet while being fluxed with an ultrasonic spray fluxer using Kester 2331ZX OA flux. You can see that the solder didn't flow out to the edges of the pads on the primary side of the board, the secondary side of the board looks wonderful. I know this is not a defect according to the -610...but is this typical? Especially since it went through two reflow cycles? Thanks in advance! -Steve Gregory- _______________________________________________________ This message may contain information that is privileged and confidential to LaBarge, Inc. It is for use only by the individual or entity named above. If you are not the intended recipient, you may not copy, use or deliver this message to anyone. In such event, you should destroy the message and kindly notify the sender by reply e-mail. --------------------------------------------------- Technet Mail List provided as a 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/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 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------