Electronics Forum | Wed Jul 02 03:12:31 EDT 2003 | Joanna
We have been having problems with solder paste balls around fine pitch ICs and have decided that cleaning the boards in an ultra sonic cleaner may reomove these solder balls. However we are worried that the ultrasonic cleaning process may damage the
Electronics Forum | Wed Oct 26 11:51:06 EDT 2005 | moonshine
Don't V score, unless you absolutely have concurrence with your QUALIFIED fab and assembly operations. Routing is best for all chip devices close to board edge. It's better and cleaner for everything when seeking quality and reliability. Visit htt
Electronics Forum | Thu Sep 14 14:18:13 EDT 2006 | Kevin W. Parker
We have begun using a PCB with Organic Surface Protectant. We normally run boards with non orgainic protectant. We can wash these boards with our ultrasonic cleaner using Zestron SC202 and a separate Hot/cold rinse system with an air knife. This r
Electronics Forum | Fri May 17 09:57:17 EDT 2002 | Hussman69
It primarily has to do with your product. Water wash does produce a much cleaner board from an ionic standpoint. I know products that are sensitive to ion leaking need to be cleaned. So you may want to use the customers own product as a point in s
Electronics Forum | Thu Mar 30 06:20:08 EST 2006 | smartasp
Hi Fellas After bangin my head several times on the cold and hot solder pot nothing improoved. The residues still bother my customer. I agree with less is better but if we apply less we have a cleaner board but the solder won't flow all the way up.
Electronics Forum | Wed Jun 18 08:51:34 EDT 2008 | ldavis
We actually found the opposite to be true. Boards processed in VP are much cleaner than those processed in our air-only convection oven. We tested 5 lead free solder pastes upon implementation and found that the type of paste does affect the number
Electronics Forum | Tue Dec 02 18:10:39 EST 2008 | sys_steven
Need your opinion guys.. The old timers at the plant here feel that we should clean our board after Misprints withe the solvent cleaner over water wash. This is so they don't have to rebake the pcb for 24 hours before smt again. I don't believe th
Electronics Forum | Wed Mar 21 15:32:08 EDT 2018 | padawanlinuxero
I agree with the other comment, if you have misprint something is wrong with the screen printing process, meanwhile try to get a ultrasonic cleaner for your boards, another thing you can do is to use dummy boards, if you don't have a lot of different
Electronics Forum | Fri May 05 15:41:54 EDT 2023 | proceng1
At the beginning, we absolutely do this with the first board. However, we do have some problem child jobs where we end up wiping 1 in 5 prints. When searching the topic, most of what I got was "ultra-sonic" cleaners, but that isn't recommended for
Electronics Forum | Wed Jun 06 14:05:32 EDT 2007 | grics
Good afternoon... I am pretty new to a lot of things in the electronics manufacturing realm and could use some help on some issues from the big guys... Our company is a contract manufacturer for many customers. We use multiple paste and flux types
