Electronics Forum | Wed Apr 26 01:18:33 EDT 2006 | ge_lim
Hi We are in the process of developing a lead free product to be used in a non lead free selective soldering machine, i do have concern in these, and hope you guy can share your experienced expert opinion: 1. What does it take to convert to lead fre
Electronics Forum | Wed Dec 01 07:47:57 EST 2004 | jdumont
I have been seeing this with a new BGA we have just started using from IBM. Is this a problem if the solder paste is wetted to the unreflowed BGA balls??? It passed our ESS testing with no problems.... TIA JD
Electronics Forum | Fri Dec 03 07:57:02 EST 2004 | Bob R.
NEMI kicked off a project within the last month or so to look at this specific issue.
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 | Sat Dec 01 21:59:35 EST 2007 | kenferrer
Hi Eng. Yumex in our company we're using 9 zones air convection oven. When the technology on Lead Free came along conversion from non-lead free to lead free viceversa was frequently done but there's no problem on contamination. Where is your company
Electronics Forum | Wed Dec 01 21:40:06 EST 2004 | Grant
Hi, High temp solder balls don't collapse in current lead based soldering, so lead free balls are similar, and don't collapse, but should still solder ok. They just look different. However I would like to know other peoples experience about reliabil
Electronics Forum | Wed Apr 26 07:37:34 EDT 2006 | amol_kane
"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from
Electronics Forum | Wed Apr 26 07:37:52 EDT 2006 | amol_kane
"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from
Electronics Forum | Tue Jun 07 19:24:26 EDT 2005 | Joseph
Dear all, Recently we encountered some functionality failure when using lead-free component(Sn99.3/Cu0.7)at SnPb(Sn63Pb37) wave soldering process. Can lead-free component use at non-lead free process? Any input/idea are much appreciated. Rgds
Electronics Forum | Sat Oct 01 01:25:30 EDT 2005 | ck
Sorry theres a mistake on previous question. It should be lead free component termination but non lead free solder alloy Sn63/Pb37. The reflow profile i am using : Soaking temp. 120 to 160 deg C; time 90 to 120 sec. Peak temp. 215 to 225 deg C; time
