Electronics Forum | Mon Jun 20 02:43:55 EDT 2011 | milroy
What is the correct FR4 for RoHS? This PCB is a 4layer board. When we get the boards from the supplier they are properly packed in vaccum sealed bags without HIC card but there is desicant in side.
Electronics Forum | Tue Sep 13 01:52:53 EDT 2011 | SheanDalton
My recollection is that RoHS limits for lead is 0.1% of the weight of any homogeneous material in the assembly.
Electronics Forum | Mon Nov 07 13:54:31 EST 2011 | kahrpr
You need to find out what is not compliant about the part. Also some parts can be compliant even though they are not stated to be. Even if the leads had a tin lead finish it may not be enough to make it not compliant. Anyways there is not any body in
Electronics Forum | Mon Nov 07 16:09:15 EST 2011 | dyoungquist
Usually not but you should check the manufacturer's data sheet for that IC. It should say in the datasheet what the maximum reflow soldering temperature is.
Electronics Forum | Wed Nov 09 11:01:35 EST 2011 | blnorman
This application is military, which requires a minimum of 3% Pb on the terminations, or mulitple mitigations for tin whisker prevention.
Electronics Forum | Wed Mar 26 10:51:52 EDT 2014 | aybars
I would recommend not to mix leaded irons to do non-leaded rework. Especially, if you are working on ROHS compliance project that will create contamination. Weller and Hakko still have tips for leaded soldering tips, you can chechk on their web sites
Electronics Forum | Thu May 29 17:18:51 EDT 2014 | island2013
whats the type of paset and the type of profile you're running. Doesn't look like enough heat to me on the first set of pics I see. Are you running ROHS BGAs on a lead profile?
Electronics Forum | Tue Feb 03 10:11:49 EST 2015 | swag
Oooooo, you're on to something. I might try rain-x instead. It's mucho cheaper. I wonder if it's ROHS?
Electronics Forum | Thu Jan 29 09:31:19 EST 2015 | swag
We use tips I think they are like 725F. So the rework is probably mid 600's and up to 725 max. Can't say if that's "the best" but we do a lot of ROHS and that's we we do with good results.
Electronics Forum | Wed Jul 15 12:20:52 EDT 2015 | dyoungquist
If you are using lead solder (SnPb) HASL is a good choice. If you are using lead-free (RoHS compliant) solder then I would recommend Immersion Gold (ENIG).
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