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 | Tue Mar 25 14:19:02 EDT 2014 | barryg
Hello everyone. I have a question pertaining to solder irons, tips and solder stations. We recently have set up our lead free wave and reflow oven. We still have quite a few projects that require leaded solder. I was curious how others handle rework
Electronics Forum | Mon Oct 18 12:55:47 EDT 2004 | marc
45 seconds from 230-245C. Check your paste material of choice for recomended profile peak temp and TAL. If you have not selected a lead free material check out the major paste suppliers on their lead free material offering and review the specs.
Electronics Forum | Wed Sep 19 11:04:49 EDT 2012 | davef
Melissa ... Are you calling the blobs of solder on the pads solder balls?
Electronics Forum | Thu Aug 19 03:09:52 EDT 1999 | Dr. Uwe Weber
we've received an inquiry if lead free solder for solder dips or surface mounting (cream solder) is available on a technical scale
Electronics Forum | Tue Aug 02 22:49:55 EDT 2005 | davef
IPC-A-610D Section 5, shows a variety of photographs of: * Good lead-free solder connections * Lead-free soldering anomalies Hot Tear / Shrink Hole is one such anomaly. This shrinkage effect appears primarily on wave-soldered joints, but can also
Electronics Forum | Mon Sep 17 05:06:04 EDT 2012 | benreben
Hi, maybe solderability of PCB...
Electronics Forum | Tue Sep 18 21:48:26 EDT 2012 | vergara1
Sorry. I don't see any solder balls. > > To me, it > looks like the solder wetted the pad and then > pulled back. It's called dewetting. It's a > defect. Ask your supplier for a SEM analysis. I'm > interested to know what he / she says. I see
Electronics Forum | Wed Dec 22 01:39:06 EST 2010 | boardhouse
Hi Johan, As a Asian board supplier - I would not recommend using Lead free hasl on any product that has BGA, you would be just looking for issues, flatness being the main. I agree with one of the other replies - Your purchasing dept. should not be
Electronics Forum | Mon Aug 01 09:06:33 EDT 2005 | davef
Based on your description, it sounds like the solder connection is defective. Further description of board and solder materials and assembly processes would be helpful in moving forward.
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