Electronics Forum | Mon Jan 15 15:40:18 EST 2007 | pyro747
Having problem with a 2X50 SCKT Strip PTH component(fine pitch) bridging on the wave. The PCB runs in wave pallets. Just wanting to know what successful findings have been done to eliminate bridging? Pallet angles? Copper or titanium inserts? Air kni
Electronics Forum | Tue Jan 16 20:44:07 EST 2007 | davef
Bridging Causes: Insufficient flux, Excessive pre-heat, High conveyor speed, Solder contamination Look here: * http://www.smtnet.com/library/files/upload/Reflow%20Wave%20Poster.pdf * http://smt.pennnet.com/Articles/Article_Display.cfm?Section=Archi
Electronics Forum | Tue Jan 16 16:59:39 EST 2007 | realchunks
Pallet angle is usually pretty good. Lead length is also another good thing to keep as short as possible. Air Knives don't work that well. Also check your board. Make sure you have solder resist between each and every thru-hole pad. If the board
Electronics Forum | Thu Jun 26 12:46:33 EDT 2008 | frankr
One way we handle this situation is to produce a wave pallet that presents the pcb at an angle to the wave to stagger the leads of the connector.
Electronics Forum | Wed Jun 25 11:30:04 EDT 2008 | samir
or... like this? 0 0 0 0 0 0 0 0 0 0 0 0 FLOW DIRECTION --->
Electronics Forum | Thu Jun 26 13:24:25 EDT 2008 | realchunks
Do you glue SMT parts on the bottom? If so, use your SMT glue to prevent the short. Just cut a new stencil with 0.020" wide apertures between the pads of the connector (bottom side). We do it all the time.
Electronics Forum | Wed Jun 25 11:24:20 EDT 2008 | namruht
I do not have a lot of specs at the moment. I just wanted to get some opinions and some of you thinking. I will get some part specs and add to this post later. WE are running a pretty big PCB and ther are some connectors on the edge of the board. T
Electronics Forum | Fri Apr 10 15:59:51 EDT 1998 | Justin Medernach
| We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. The
Electronics Forum | Fri Apr 10 20:35:59 EDT 1998 | Steve Gregory
| | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. T
Electronics Forum | Mon Apr 13 08:42:32 EDT 1998 | Bob Silveri
| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble
