Electronics Forum | Tue May 02 15:43:06 EDT 2006 | bhall
Thank you PWH, All good points. I use a semi-automatic printing process not a screen printer so if more solder balls and beads are created then I would be creating more re-work and that is exactly what I do not want to do. I guess the best thing to
Electronics Forum | Wed Sep 30 04:36:54 EDT 1998 | Jacqueline Coia
Still cant get a fix to SMD soldering problems, Joints still look strong shiny and well wetted, although when pulled lead still coming away from pad, leaving a dull grainy looking space. This is occuring just after reflow (convection), no other proc
Electronics Forum | Wed Mar 17 22:28:54 EST 1999 | Tony A
| After switching from No-clean flux to Water soluble (Kester)we encountered voids problem (X-ray and microsectioning). Reducing the apperture sizes made the voids smaller but did not eliminate them. So we had to go back to No-clean. Any idea why voi
Electronics Forum | Thu Feb 16 12:07:19 EST 2006 | dpmilk
We have been using Coilcraft 1008CS inductors for several years. We have had problems with them turning green when we use lead-free solder paste. We have tried several solder pastes (water soluble and no-clean)from different manufacturers, but the
Electronics Forum | Tue Feb 11 13:27:46 EST 2020 | rgduval
This is a No-Clean solder paste, therefore, it's intended not to be cleaned. If you need your assemblies to be cleaned post assembly, I would highly recommend a water soluble solder paste. It will provide much better looking boards in the long run.
Electronics Forum | Mon Apr 29 10:42:47 EDT 2002 | Jim M.
I had problems with white residues on both WS609 and WS 3060.The WS 3060 turned out to be a carbonized material.The composition after analysis (Energy Dispersive X-ray spectrum) turned out to be tin,tin,phosphore and cloline and tin. Alpha also have
Electronics Forum | Sun Mar 31 22:50:28 EST 2002 | ianchan
Nope, we do not have solder beads, like we said, what we have are near perfect solder fillets except for the portion where the component is "floating OFF" the pcb pads. We are now mucking through the IPC-A-610C for specifications dictation on "tilted
Electronics Forum | Thu May 16 22:37:22 EDT 2002 | xzinxzin
anyone experience to solve the non-wetting on Microleadframe packages component terminal sides. 1)I test the components solderbility in dip and look test, in solder pot at 240 deg C,the wetting on the sides is ok. but I run on mass production in refl
Electronics Forum | Fri Nov 18 09:21:41 EST 2016 | sumote
Lazy operators empowered by management. Sounds like you may have some nepotism? Since it falls to you to clean up someone else’s mess I have an idea for you. I once worked for a company that had a large wash sink with a hand sprayer very similar to
Electronics Forum | Wed Oct 07 22:40:05 EDT 1998 | Eric R.
Came a cross an interseting observation/question. I'll need to filter additional information and specifics to those whom may be able to assist me. But for now; I use a water soluble base organic flux manufactured by Kester (the exact solution will
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