Electronics Forum | Tue Jul 27 06:08:18 EDT 2004 | C Lampron
Good Morning Everyone, Could someone please tell me what the acceptable range is for HASL plating thickness. We have some raw boards with plating thicknesses ranging from 3-4 mils on a fine pitch QFP. We are expeiencing bridging at this location an
Electronics Forum | Tue Aug 30 22:38:54 EDT 2005 | cabs
Does any one knows where to get a plating thickness meter that can be use in the fine pitch contacts and trace in PCB application like BGA pads? If there's a hand held device at lower cost much better... Also if you can recommend companies that offer
Electronics Forum | Wed Aug 31 06:36:44 EDT 2005 | Slaine
i looked at hand held XRFs for a similar application, but the smallest surface i could find one sampled was about 3mm diamiter and there about �30k but a few companies will lend you one dor trials, would tell you the plating thickness and metalic ele
Electronics Forum | Wed Nov 23 17:33:23 EST 2005 | adlsmt
Are the components 100% tin plated? Thats what we are buying and we have no problem at all soldering with the same profiles we always have used and we use the same alloy as you but different mfg. We have not had problems soldering tin plated parts wi
Electronics Forum | Fri Mar 24 18:07:25 EST 2006 | Chris
Flash gold is just thin gold plating over electroless nickel or electrolytic nickel. Flash gold is electrolytic gold where the panel is connected to a plating rectifier and current causes the plating process to occur. Gold thickness is controlled b
Electronics Forum | Tue Sep 19 14:39:55 EDT 2006 | ppcbs
I have some Engelhard E-74 Potassium Gold Cyanide and related chemicals I use to make a small high concentrate plating bath for swab plating. I lost my bath mixture instructions and find that Engelhard no longer supports this product. Does anyone h
Electronics Forum | Thu Dec 07 21:08:48 EST 2006 | Cmiller
it is not that I am aware of either. Make sure you get your boards from a house that does the gold plating in-house or you will continue to have the problem. The gold needs to be plated immediatly after the nickel, not a few days later. I have only h
Electronics Forum | Thu Jul 05 17:10:29 EDT 2007 | arun2382
Thanks all! I'm facing this issue with one specific batch of QFNs. It could be a plating issue. But, nothing was evident from visual inspection,No sign of voiding or non-wetting. Cross-section images of solder joints were clean as well. Could this s
Electronics Forum | Thu Jul 26 23:57:47 EDT 2007 | gioblast
Good day.. anyone who have read the best guide on pb-free pcb plating?? I know immersion is the best but the storage controls sucks..easily changes color..ANYONE WITH A BETTER kNOWLEDGE ON HOW TO CONTROL? OR better plating ...enig?? why?? please. all
Electronics Forum | Fri Feb 13 19:51:07 EST 2009 | joeherz
Update Received cross-section analysis for ENIG plated boards and am happy to report that we have no voiding issues. Intermetalics look great and no copper dissolution. No process parameters were changed, only the PCB plating. For now, we are onl
