Electronics Forum | Thu Jul 20 03:00:53 EDT 2006 | reypal
If you are using SMT machine for component placement you may check your nozzle where in some cases solder paste stuck to it and during placement will easily get into gold pad area. otherwise you have use kapton tape in order not to expose those pads.
Electronics Forum | Tue Jul 18 05:52:24 EDT 2006 | sant
Check the Bare PCB lot. Enquire about the HAL process for Tin deposition while PCb fabriction.
Electronics Forum | Tue Jul 18 07:39:52 EDT 2006 | Chunks
Is the hole always in the same solder joint? What parts do you see the hole(s) on? Can you try a different paste?
Electronics Forum | Tue Jul 18 09:57:17 EDT 2006 | slthomas
You might try baking the boards before using them. If the problem goes away you might want to look at what sort of environmental controls your board fab guys are using/stuck with/wishing they had.
Electronics Forum | Tue Jul 18 07:50:47 EDT 2006 | adlsmt
Are the leads actually pulling off the pads or are the pads coming up as well? Did you ever try this "experiment" before you used lead-free?
Electronics Forum | Tue Jul 18 07:55:33 EDT 2006 | Chunks
Can you describe "easy"? Is it a flick of the finger, do you need tweezers? Remember, the solder is just there to provide an electrical connection, the physical attachment is a bonus! "Give me a big enough lever, and I can lift the world." --Archi
Electronics Forum | Tue Jul 18 09:53:30 EDT 2006 | slthomas
What do the leads of the components look like when you pull them off? Are they covered in solder? Did the plating stay on the solder fillets attached to the pads?
Electronics Forum | Tue Jul 18 10:06:16 EDT 2006 | rocko
Dear Steve, I think the plating o fthe leads stay on the solder fillets. The leads of component are free of solder. Regards, Rosen
Electronics Forum | Tue Jul 18 10:53:36 EDT 2006 | Chunks
Sounds like a part problem. You must use the same broker we do. New parts with bend leads, leaded parts "redipped" to turn lead free. The list goes on....
Electronics Forum | Wed Jul 19 10:58:17 EDT 2006 | slthomas
Having never used either DEK or MPM I can't comment on the "big 2" but you might want to include EKRA in your long list. We had a couple of E5's at my last employer and loved them.
