Electronics Forum | Thu Feb 07 13:53:06 EST 2013 | dyoungquist
IR reflow worked well for leaded solders but is not recommended for lead free reflow soldering. Your darker components (ICs) absorb more heat from IR than lighter colored ones (Rs & Cs). When getting all solder joints up to the proper lead free pea
Electronics Forum | Tue Sep 16 16:45:44 EDT 2008 | trynders
Thanks for the response! I thought is was odd the component vendor chose SAC for a lead frame finish. I am in the Military world, and things have been difficult to control from a lead-free standpoint. I have not been able to find any studies on SAC
Electronics Forum | Mon Mar 17 11:56:38 EDT 2008 | dyoungquist
We have had VERY GOOD free tech support from Mydata. However, we bought a refurbished TP9 directly from them. I believe if you by a used MyData machine from someone else there is a fee to register your company and the machine in their system before
Electronics Forum | Wed Jul 05 10:13:02 EDT 2006 | jdengler
Is the flux rated for lead free? These higher temps will cause most lead rated fluxes to burn off prior to the wave. Jerry
Electronics Forum | Sun Nov 16 19:05:45 EST 2014 | warwolf
Seen it. We use a lead free process, sometimes our supplier will use a lead process silk screen that burns at a lower temp. The HASL coat was still SN100CL.
Electronics Forum | Fri Jun 12 01:17:58 EDT 2015 | armandogomez
hello! Can you be more precise on what you need ? like profiles in general? leaded? lead free? low temp profiles? cheers!
Electronics Forum | Fri Feb 15 17:42:47 EST 2019 | slthomas
Pd in the termination plating, maybe? That stuff has reeked havoc on wetting for me in the past, but that was in leaded assemblies at leaded temperatures. Maybe now with Pb free temps it works better?
Electronics Forum | Thu Nov 03 10:33:04 EST 2005 | Samir Nagheenanajar
I've read all the SMTNet threads available on this topic, been to a couple seminars, and read some articles, and the general consensus seems to be "it can be done, but shouldn't." However, at my company, we have a Pb-Free (SAC alloy) 256 IO BGA comi
Electronics Forum | Thu May 01 10:51:09 EDT 2008 | realchunks
You need a paste designed specifically for this. They are available. Most have 2% silver in them and higher temp flux so you can reflow at "no-lead" temps. The silver aids in the intermaetalic bond and the high temp flux allows you to reflow the n
Electronics Forum | Sun Nov 05 23:01:53 EST 2006 | Sxsxcx
ok, sorry ,750 was deg F and which I said 350~400 were deg C, I got a mistake. As I know, we use 660~720 deg F to do reworking for lead free solders such as SAC series and SnCu0.7 series solder to protect irons and components on boards. when temp.
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