Electronics Forum | Wed Oct 07 13:15:06 EDT 2015 | markhoch
You can most certainly use the same reflow oven for both leaded and lead-free pastes. Obviously your thermal profiles will be different, as the lead-free paste should have a higher reflow temp. As long as your oven has adequate exhaust and flux manag
Electronics Forum | Tue Jan 20 10:00:25 EST 2015 | TM
Hello We are currently cleaning stencils from both process (PbSn and lead free) in the same cleaning machine. A customer is concerned about cross contamination of lead between stencils. Is there any test kit or tool that you can suggest to test the
Electronics Forum | Fri Nov 08 17:49:05 EST 2013 | davef
First, it's a surprise that your failure analysis lab thought everything was OK with these boards. They look like shit. Second, a few years ago, there was a bunch of complaints about ENIG boards with issues similar to what you're observing. There wa
Electronics Forum | Thu May 18 09:52:09 EDT 2006 | russ
Guru, you are nothing but a liar, any respectable consulting firm would not use a name as Guru Expert. Also would not change from a contamination thread to all the BS you just threw out trying to impress with your vocabulary. One does not need to qu
Electronics Forum | Wed Sep 12 20:46:16 EDT 2007 | Mag10
We've configured SMT and Wave lines such that each line can run either No-Clean and Water soluble process. As we are doing cleanliness study, an observation is there may be cross contamination when we share the Rework benches or PCB trays between No-
Electronics Forum | Fri Sep 14 02:28:31 EDT 2007 | Mag10
Thanks davef. Your comments are well taken. How about the trays transporting boards from one station to another or staging at WIP Kanban? It��s easy enough to segregate rework stations and tools. Trays are used thru out the plant without segregation
Electronics Forum | Wed Oct 23 22:16:42 EDT 2002 | peterson
Hello everyone. Can someone please tell me if there are problems using No Clean solder for SMT and then using WS Flux with our Wave process? We are aquaeous cleaning after...but are there other cross-contamination issues? THANKS!!!
Electronics Forum | Wed Jul 27 22:09:49 EDT 2005 | Ken
My policy is not to mix them. You have zero cross contamination potiental with this policy.
Electronics Forum | Fri Sep 14 08:24:19 EDT 2007 | davef
Sure, it's possible to transfer water soluable flux from boards to tray to boards with low residue flux. We have never heard of this try of problem.
Electronics Forum | Tue Oct 08 20:06:03 EDT 2002 | peterson
What is the procedure for insuring that our solder is not contanimated in our wave solder process if we switch between water soluable and no clean solder. We switch between the two types on the same machine during consecutive shifts. Should the entir
