Electronics Forum | Fri Apr 20 09:45:19 EDT 2007 | patrickbruneel
Here�s another article on lead free solder joint embrittlement http://uic.com/wcms/WCMS2.nsf/index/Resources_75.html
Electronics Forum | Tue Apr 17 01:53:51 EDT 2007 | Jane
http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel3/3476/14162/00649440.pdf?arnumber=649440
Electronics Forum | Wed Apr 18 06:18:53 EDT 2007 | pavel_murtishev
Good afternoon, Huh. My sympathy. We have the same issue. Check this: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=11637&mc=3 BR, Pavel
Electronics Forum | Wed Apr 18 14:14:51 EDT 2007 | flipit
I heard that Swatch was granted their exemption to use lead solder for anything under 800 microns pitch. Is this true? Can't find a thing on the Web stating that this exemption was granted. Chris
Electronics Forum | Fri Apr 20 11:04:24 EDT 2007 | patrickbruneel
James, Smart thinking!! That�s what Swatch and probably Sony does. And to set the record straight Japan doesn�t have a lead ban in solders only a recycling program similar to the European WEEE
Electronics Forum | Thu Apr 19 02:49:07 EDT 2007 | ray
I observed some black dot or some oxidation occured on chip termination on pcba reflowed fews weeks ago as buffer stock. The solder joint and fillet wetting is good and shinning. It is an acceptable or defect condition per IPC standard/requirement? W
Electronics Forum | Thu Apr 19 19:57:09 EDT 2007 | davef
heat and cycle* Here's one of the threads you'll find: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=48102
Electronics Forum | Fri Apr 20 07:40:28 EDT 2007 | realchunks
Hi PeteB Do you know PeteC? Anyway, it all depends on your most sensitive part. Look up the spec sheets to determine. Most general parts can take 3 or 4 heat cycles easily.
Electronics Forum | Mon Apr 23 03:15:13 EDT 2007 | Esah
Yes, we also never experience erosion phenomenon on our solder pot. We are currently using one Sn Cu based alloy, which is SCS7.
Electronics Forum | Tue Apr 24 17:39:05 EDT 2007 | Cmiller
I would not really say green, but muddy, yes. It does not look like tin/lead dross. You should not see it on you solder joints though.
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