Holey Crikey! Better you than me! Seriously, how about solder ring donuts placed on each lead prior to placement, between connector and PCB, then convection reflow. You should have plenty of clearance on bottom side for leads if you run on chain, right? Sounds far-fetched, I know, but alternatives could be costly and actually increase labor time. Just my .000002 cents Jason Gregory Manufacturing Engineer LaBarge Inc. --- Houston (281)207-1464 (281)207-1434 fax (832)724-0076 cell [log in to unmask] http://www.labarge.com Steve Gregory <[log in to unmask] To: [log in to unmask] M> cc: Sent by: TechNet Subject: [TN] How would you solder this Backplane? <[log in to unmask]> 03/11/2004 09:37 AM Please respond to "TechNet E-Mail Forum."; Please respond to SteveZeva Mornin' All! One of the guys from our bid department asked me to come and look at a backplane we're bidding on, and tell him how we would solder it? I went and looked at it, and I'm not sure how we would. Go to http://www.stevezeva.homestead.com and take a look at Backplane Topside, Backplane Backside, and Backplane Backside Leads. The leads for all the connectors protrude at least a half inch or longer out the bottom of the board. I'm assuming they are that long because they get wire wrapped after the backplane is assembled. But how do you solder something like that? Some sort of dip solder pot? Drag solder? I don't think I'm going to be able to solder a board with leads that long in our Electra wave solder. I can tell board was mass soldered, and I'm thinking it was dipped somehow. Because you can see tiny little peaks on most of the lead tips that go straight up and down. Is there such thing as some sort of dip solder machine? Sorry for all the dumb questions, but I've never been around a backplane like this, and don't really know how something like this gets built. Thanks! -Steve Gregory- --------------------------------------------------- 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 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------