Electronics Forum: melting and leadfree (Page 1 of 25)

looking low melting solder paste

Electronics Forum | Mon Nov 01 11:43:45 EDT 2010 | patrickbruneel

Jacki, Lead-free Cu based alloys with melting point below 210C don’t exist.

Question about leaded parts used in leadfree soldering process

Electronics Forum | Fri Apr 07 11:19:55 EDT 2006 | muse95

Technically speaking, most likely yes it will work, unless possibly it is a BGA. There are issues surrounding BGA's. Here are some of the general issues: On any type of component, if the Pbfree solder you are using contains bismuth, then the Pb in

lead free and tombstoning

Electronics Forum | Fri Feb 17 11:01:47 EST 2006 | amol_kane

with lead-free solders, one would expect to find less instances of tombstoning. this is because SAC alloys are not eutectic and melt over a range of temp (usually 217-220 deg C) instead of at a single temperature. therefore the forces due to solder s

PB-Free HASL and Leaded Solder

Electronics Forum | Thu May 13 20:40:25 EDT 2021 | winston_one

Yes, we can't use pure Pb PROCESS. And as I say we will not use it anyway, as we have lead-free BGA's, LGAs, component with Solder Charged Terminations... It's became almost normal practice to solder it with leaded solder pastes. In this case peak re

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Tue Nov 06 22:37:35 EST 2012 | davef

Ryan ... "As for bismuth-based lead-free alloys, a lower melting temperature than that of tin-lead is offered together with a cost similar to that of tin [in the area of $3/lb]. Unfortunately, bismuth in soldering alloys tends to create embrittlemen

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Wed Nov 07 15:01:18 EST 2012 | nikyta

Thanks Dave , my question is about Spopov want to try "Lead Free" SnBi (but uses it on Leaded finishes), but is worry about its low melting point (at this point, no longer 138 degrees as he wrote, but rather in an unknown and unpredictable range bet

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Fri Nov 02 09:09:56 EDT 2012 | davef

Sure you can use it it with leaded HASL. Recognize that ... * Your Sn42/Bi58 will no linger be Sn42/Bi58 * Your leaded HASL will no longer be the same leaded HASL that walked in the door to your plant * Lead from HASL coatings can diffuse through the

The truth about lead-free and environment

Electronics Forum | Thu Mar 23 21:35:43 EST 2006 | Wave Master Larry

Eutectic is were the deltas of the oven melt the paste. At least that what the maintenence guy tells me but hes alway gooped up on some goop, so who really nows. No lead is simple. With all the cell phones you guys by nowadays, the gabage heaps ar

lead free platings and tin lead

Electronics Forum | Tue Aug 31 17:36:36 EDT 2004 | davef

NO-LEAD COMPONENTS WITH LEAD SOLDER ISSUE: We agree with Russ. We've dicussed this several times on SMTnet. For instance, look here http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=25394 LEAD COMPONENTS WITH NO-LEAD SOLDER ISSUE: We disa

Wave and Reflow Profiler

Electronics Forum | Mon Feb 18 13:11:41 EST 2008 | tonyamenson

Are there profilers that I can use over my leaded and lead-free wave that can also profile my reflow ovens (leaded and lead-free). I'm not that familiar with either but as I learn I can't help but think that there should be something on the market t

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