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 | Tue May 21 12:04:52 EDT 2002 | larryk
Dave, I hear ya on the WS perks. The one thing that got me thinkin' is the BGAs. I've been doing the normal higher stuff with no issues, but sales is starting to get orders for them little buggers. I'm thinking under .8mm, I'm gonna have to think abo
Electronics Forum | Fri Jul 19 21:19:25 EDT 2002 | yngwie
Hi, I know this is a total screwed-up. Operator used the wrong paste. It was supposed to be a clean paste but she was issued with no clean paste. What happen was when the brd processed thru', after the reflow, the girl passed the boards thru' DI wa
Electronics Forum | Wed Jul 31 06:50:10 EDT 2002 | mzaboogie
We have recently implemented a selective solder process using no clean flux. We have experienced a problem with "micro solder balls" Some of them are not so "micro". The equipment manufacturer stated that this is a common problem with no clean select
Electronics Forum | Fri Oct 18 06:33:28 EDT 2002 | johnw
Here's one for you lot, dos anyone have a method or a vendor that can clean the ball's of BGA's of oxides to bring them back to 'new' conditions ? I've got a bathc of components that are fairly old and I get some issues with soldering them which I b
Electronics Forum | Tue May 18 09:13:08 EDT 2004 | E Wolf
I'd like to follow the thread discussed on assembly. Hope Everyone is ok with that. I do run into the problem (have it now) that Ionic cleanliness is requested by print on a no-clean assembly. My intention is to use the no-clean to skip the aqueou
Electronics Forum | Thu Feb 27 15:33:37 EST 2003 | James
We need to use water-soluble paste due to cleanliness requirements. No-clean does not mean No-contamination. I have talked to a lot of people who use no-clean and they still wash their boards except now they have to use chemicals to do it. So, you
Electronics Forum | Mon Apr 07 13:26:25 EDT 2003 | billschreiber
Dear Yukim, You may want to make sure that your presolder cleaning processes will support the change to a new flux. Many chemistries are vertically oriented and will clean only a selected few types of solder pastes. If you find that a new cleaning
Electronics Forum | Mon May 12 10:48:49 EDT 2003 | Theresa Woodford
Does anyone have any experience with plasma cleaning? I currently have an IMS Substrate (10-15 microinch gold flash over electroless Ni) attched to Ryton PPS / R40 walls (40% glass filled/compression molded). The wall is being attached to the IMS u
Electronics Forum | Tue May 20 12:35:45 EDT 2003 | Mike Konrad
This probably a reflow issue, not a cleaning issue. Although ultrasonic cleaners are not normally used in post-reflow applications (fear of internal wire bond damage), I have never heard of broken solder joints caused by an ultrasonic cleaning syst
