Electronics Forum | Mon Jul 17 17:37:10 EDT 2006 | russ
Okay, now we can get rolling here. Here is a couple of things about selective wave that Ihave found very helpful 1. Make sure that no parts on back side are in excess of .15". if they are we skip; out in SMT and handsolder if labor costs justify.
Electronics Forum | Mon Apr 25 02:25:32 EDT 2005 | Mike Konrad
The issue of using ultrasonic technology for post reflow de-fluxing presents challenges in two categories: Controversial: Although there are recent studies that indicate acceptance with ultrasonic technology on populated assemblies, there remains si
Electronics Forum | Thu Jun 09 10:08:59 EDT 2005 | Herman
Hello, We had serval times problems with wavesoldering medium and low density boards. After analysis one time the problems where in the carrier an other time the flux was Not visible contaminated, ...etc. I wonder, does any one know a complete wav
Electronics Forum | Tue Dec 05 21:36:51 EST 2006 | Jimmy
Hello, Currently, we are running new product,server card, and encountered hugh false alarm (17%) at ICT station. Already confirm its is not flux issue...False call always on the vias location. I also notice the vias size is much smaller than those
Electronics Forum | Thu Jan 29 15:30:41 EST 2004 | pjc
Rick, As I understand your comments, you do not need to clean off the flux residues? Then hot water and a little cleaning chemistry should do. However, there may be some reaction by the residual flux if not enough cleaning chemistry is used. There a
Electronics Forum | Thu Apr 08 16:25:38 EDT 1999 | greg c
I am looking for a BGA rework/placement system and would like any experience that you have had. I am looking for a system that is reasonable for the placment, removing and re-balling thank you
Electronics Forum | Mon Feb 02 08:23:03 EST 2004 | Mark
Just something we have done with our low volume cleaning of boards. Go buy a cheap steamer and a slow cooker. Let the boards submerge in the cooker at 160 degrees on a grate for about 30 mins than spray away. Don't forget the DI-water to put in it a
Electronics Forum | Thu May 09 11:37:12 EDT 2019 | slthomas
I'm curious about what you guys do for Pb-free HASL profiling. We seldom see this finish (only on consigned boards or if they specify it directly, which is very rare) so we don't have a lot of experience. Certainly we get better results with high
Electronics Forum | Wed Feb 04 13:12:35 EST 2004 | Debbie
Hi Rick, Cleaning No Cleans is becoming more of a norm. It is true that changing to a OA flux/paste would be a easier process to control from a cleaning standpoint. A water soluble process will cost a great deal less as well. However, if your pro
Electronics Forum | Mon Apr 25 16:25:07 EDT 2005 | Mike Konrad
Hi Carl / Bill, I seem to miss your point regarding disclosure. As I CLEARLY stated, it is the perception of damage more than the possibility of damage. As a twenty year veteran of de-fluxing systems, I can assure you that there remains enough con
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