Electronics Forum | Thu Mar 15 10:05:41 EDT 2007 | Johnny
Sorry new to this... Question: will I have any problem soldering a resistor network with SAC305 coated leads using a normal leaded wave process besides the normal board thickness issues Thx
Electronics Forum | Mon Apr 09 07:48:58 EDT 2007 | realchunks
Hi Chris, So you run eror free for 2 years, then change stencil aps and get problems. Why would you go smaller? Try using your old stencil with your no-lead.
Electronics Forum | Tue Apr 10 15:36:06 EDT 2007 | mmjm_1099
Per part.... lookup the european ROHS rules. If you are asking this question and doing lead-free assemblies. Than you have not yet done enough homework. Read all materials on ROHS/Lead-free that you can. Here's a link to get you started. http://lea
Electronics Forum | Thu Apr 12 08:16:19 EDT 2007 | davef
Toe down solution: * Land pattern design * Solder stencil design * Proper component fabrication Normal gull wing lead solder requirement: Solder must extend to the mid-point of the outside of the lead bend.
Electronics Forum | Mon Apr 16 17:52:14 EDT 2007 | davef
Look here: http://smt.pennnet.com/display_article/289838/35/ARTCL/none/HMST/IPC-Conferences-Raises-New-Lead-free-Reliability-Concerns
Electronics Forum | Tue Apr 17 09:54:49 EDT 2007 | patrickbruneel
The only way to resolve these issues is to bring back the good ol� lead and make the joints ductile instead of brittle for an affordable price. Thanks for the link Dave
Electronics Forum | Tue Apr 17 10:14:29 EDT 2007 | patrickbruneel
Or this might be the right solution Alternative lead free soldering reviewed: http://circuitsassembly.com/cms/content/view/4665/95/
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 | 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
.gif)
