Electronics Forum | Sun Nov 04 05:11:14 EST 2007 | omidjuve
can you send me the articles about the high frequency boards issues with different types of solder paste alloy because i can`t find any free document about this article
Electronics Forum | Mon Nov 05 19:43:09 EST 2007 | davef
"Effects of surface finish on high frequency signal loss using various substrate materials" - Call Don Cullen at Mac Dermid or Larry Gatewood at Rockwell Collins for a copy.
Electronics Forum | Wed Oct 10 07:04:41 EDT 2007 | jdumont
How do you guys calculate the total RoHSness of a part? Do you have to know the weight of the leads for instance on each part?
Electronics Forum | Fri Oct 12 10:33:22 EDT 2007 | jdumont
So if I have a PCB with 2000 parts on it and one 0805 resistor has 63/37 plating on the terminations the entire assy has to be considered non lead free? That cant be right... can it?
Electronics Forum | Fri Oct 12 10:45:49 EDT 2007 | jdumont
Do you know where I can find some literature to back up that statement? Thanks for the assistance by the way...
Electronics Forum | Fri Oct 12 13:41:17 EDT 2007 | patrickbruneel
I found the right RoHS equation: SnPb - Pb + Cu +Ag = Au Have a great weekend lol
Electronics Forum | Fri Oct 12 15:24:24 EDT 2007 | patrickbruneel
The exempt request is still under consideration. Look at page 6 in following link. http://www.buyusa.gov/europeanunion/rohs_exemption_status_tracker.pdf
Electronics Forum | Wed Oct 17 08:20:20 EDT 2007 | davef
Darby Look here: * http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=202401949 * http://www.iphonematters.com/article/apple_iphones_not_green_enough_grounds_for_green_peace_lawsuit_111/
Electronics Forum | Wed Oct 10 13:13:44 EDT 2007 | jsloot
Any body using any kind of special finger marker stickers used to check wave solder conveyor fingers parellism? If so please contact me.
Electronics Forum | Mon Oct 15 12:50:10 EDT 2007 | russ
have you looked at any of the industrial supply companies? They sell rubber strips/sheets/tubes of about every makeup there is, I would bet they would have what you need. Russ
