Electronics Forum | Thu Jul 20 16:08:18 EDT 2000 | Grant Baynham
Do you have any experience with flip chip applications using lead-free solder, and specifically do you have any information revealing how the process parameters for standard air reflow atmosphere can be modified to match the results for solder reflow
Electronics Forum | Sat Jun 25 00:52:31 EDT 2005 | ktron
Hi all, Recently I had problem with printing the lead free solder paste, almost every board has bridging especially on the fine pitch locations. Anyway this problem never happens when we use leaded solder paste. So I would like to ask if there are a
Electronics Forum | Mon Aug 13 12:03:50 EDT 2007 | davef
Test results indicated that the life of lead-free solder at a 2512 chip resistor could be worse than of SnPb solder in the accelerated thermal cycling condition. [Development of Life Prediction Model for Lead-free Solder at Chip Resistor, Changwoon H
Electronics Forum | Mon Sep 08 10:46:29 EDT 2003 | Kris
Hey, I would suggest using lead-free solder and lead-free components. This would give your kit the "green label". I dont want the sample if you this suggestion doesnt value add to your project good luck
Electronics Forum | Tue Mar 15 12:20:47 EST 2005 | Material Man
The use of nitrogen in lead free wave solder operations is primarily used to reduce or even eliminate drossing of the solder, thus improving solder yield. The higher priced lead free solder makeup (Cu, Ag) make this a more economical proces than the
Electronics Forum | Wed Jan 26 12:56:36 EST 2005 | patrickbruneel
Rob, Check these links as a starting point http://www.calce.umd.edu/lead-free/longterm.htm http://www.calce.umd.edu/lead-free/tin-whiskers/
Electronics Forum | Wed Mar 08 09:47:16 EST 2006 | slthomas
Just guessing here because I haven't researched it and we're not lead free yet, but wouldn't you want a flux chemistry that's optimized for higher iron temps for lead free use?
Electronics Forum | Wed Jan 07 14:33:00 EST 2015 | eezday
The assumption that a HASL Sn63 PCB can be soldered with SAC solder paste is likely a bad one. The board itself is likely FR4 which can be damaged by lead free temperatures. The HASL finish isn't an issue from the perspective of it's makeup and actu
Electronics Forum | Thu Jul 28 09:23:48 EDT 2005 | fctassembly
300 million boards to date). I also have some reliability data for joints made with these 2 alloys wave soldered and then repaired with both. All of these results look good. The issue we see is mixing SN63 with any of the lead free alloys. Sn63 wave
Electronics Forum | Tue May 27 21:07:41 EDT 2003 | jedduan
Thanks Dave. It's very nice of you. Jed
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