Electronics Forum | Thu Feb 17 14:00:30 EST 2011 | aribeiju
We have a problems with soldering in the PCB in the Solder Wave process. Our pcbs are failures in the solder (voids) in the throughole components. The main problems is in varistor components. what are the soluctions to problems? tks
Electronics Forum | Wed Jul 15 12:20:52 EDT 2015 | dyoungquist
If you are using lead solder (SnPb) HASL is a good choice. If you are using lead-free (RoHS compliant) solder then I would recommend Immersion Gold (ENIG).
Electronics Forum | Mon Jan 23 21:45:40 EST 2023 | stephendo
Have you looked at simple solder fountains? If it is just simple connectors that might be all you need. Or maybe a small wave solder machine?
Electronics Forum | Mon Jul 13 03:00:29 EDT 1998 | Bob Willis
Very good point. I will be linking back to the page shortly when the my 30 training videos, 15 CD ROMs are featured on the book store page. This will be happening shortly as its an administration thing. Thanks for the input there will be a wave solde
Electronics Forum | Thu Jun 17 17:26:56 EDT 1999 | wayne sanita
first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads. any
Electronics Forum | Sun Jan 14 12:42:35 EST 2007 | SMTRework
I think the main cause of this condition is #3 because both #1 and #2 never change from board to board, these are identical boards with identical BGA revisions. These BGA's (as stated before) are about 3 years old.. I don't believe they are lead free
Electronics Forum | Mon Apr 26 14:37:42 EDT 2004 | wgaffubar
We see this sometimes but I have found it to happen based on how fast the solder is cooled back into a solid. Pull strength test and thermocycling show no problem with solder joint integrity.
Electronics Forum | Wed Feb 12 07:25:47 EST 2020 | dontfeedphils
If you have control of the solder alloy you're able to use on the product, you could run a lower temp solder on the second side and try to avoid the first side entering reflow.
Electronics Forum | Fri Oct 01 17:59:13 EDT 2010 | rway
Your real problem is further upstream. The limitations of your AOI aside, first find out why your leads are being lifted. Is it through handling or are they from the reel that way? To address your AOI question, Hegemon is correct, coplanarity inspe
Electronics Forum | Mon Oct 19 07:48:19 EDT 1998 | Graham Naisbitt
Greg, I may be mistaken but am fairly sure it means Nitrogen or inert gas soldering. Soudage sous azote is French for Nitrogen soldering. Hope this helps Regards, Graham Graham.Naisbitt@concoat.co.uk | Has anybody out there, heard of a process/t
