Electronics Forum | Thu Mar 04 14:33:09 EST 1999 | Greg Valdman
Our vendor proposed to supply us with shields made out of Cold Rolled Steel (CRS) electroplated with Sn (50 - 150 minches). Should I be concerned with solderability or are there a better alternatives to tin finish?
Electronics Forum | Thu Dec 17 16:42:26 EST 1998 | Dave Clements
Has any anyone established / published quality standards for BGA solder joints? Is IPC-A-610 in process of adding standards for BGAs?
Electronics Forum | Tue Oct 15 16:03:45 EDT 2002 | davef
Abelardo, In your response on this thread you mention "pink lady". Please help us understand "pink lady" better. Is that a temporary solder mask?
Electronics Forum | Thu Jan 16 10:18:53 EST 2003 | burb1999
I have heard that the profiles are pretty much the same but I have a visible solder joint difference... might half to start looking at the plating, might be something with that?
Electronics Forum | Tue Sep 23 06:58:13 EDT 2003 | chrissieneale
Look out for shorts due to too big pads / balls colasping too much / too much solder paste though. there's a fine line and it's expensive to find it!
Electronics Forum | Tue May 10 17:50:08 EDT 2005 | davef
Consider: * Changing your temporary solder resist [TSR] to a light cure. * Contracting with your board fabricator to apply the TSR. * Gaining better thickness control of your application process by silk screening the current TSR. * Forcing more air c
Electronics Forum | Tue Nov 15 15:40:20 EST 2005 | Stuart
We are using an inline aqueous washer with saponifier to clean smt assemblies with rosin based no-clean solder paste. Looking for a reliable, cost-effective way to monitor the cleanliness of the assemblies after cleaning. Any recommendations?
Electronics Forum | Mon Dec 05 12:41:40 EST 2005 | stepheniii
thermal cycling chemical reactions (can occur slowly) they were only touching before and not really a solid solder joint
Electronics Forum | Wed Mar 08 17:06:55 EST 2006 | Chunks
You will not get a "visible" solder joint on this part. The joint is under the part. If you can magnify the part, you'll see the exposed lead is not plated.
Electronics Forum | Fri Oct 27 11:48:59 EDT 2006 | stepheniii
I use adipic acid to clean our Ersa selective solder machine nozzles. Makes a huge difference and is quick and easy.
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