Electronics Forum: lead and free and solder and paste (Page 1 of 23)

lead free platings and tin lead

Electronics Forum | Tue Aug 31 11:57:03 EDT 2004 | Kris

Hi Any body have any issues soldering tin lead solder paste with lead free terminations ? Components are leaded devices and chip components have read the theoritical discussions on the forum, need to know if any body has seen any real issues tod

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

lead free and tombstoning

Electronics Forum | Thu Feb 16 12:41:50 EST 2006 | fredericksr

Hey folks, I was interested in any information that you might have on tombstone reduction when using a lead free solder and profile. Thanks for any input that you may have! -Russ #x

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

Kester R562 and using lead free components

Electronics Forum | Fri Jul 06 12:11:34 EDT 2007 | james

We are starting to see issues with using Kester WS R562 with lead free components. The joints look grainy on almost all of the 0402'2 and other small components. Some of the solder does not solder to the terminations. These are hybrid boards which

Kester R562 and using lead free components

Electronics Forum | Fri Jul 06 13:44:15 EDT 2007 | shrek

Krikies! seems like a head-scratcher if I may say so me-self. I would say the other ogre is right, that surface finish will play a big factor in your solder joint's grain structure or how shiney 'tis. Non-HASL bearing finishes will typicaly exhibit

hot bar and lead free

Electronics Forum | Wed Jan 07 12:09:40 EST 2004 | Kris

Hi All, Does any body have any information on hot bar lead free soldering ? Need papers or experimental data ASAP Thanks

lead free platings and tin lead

Electronics Forum | Tue Aug 31 12:01:26 EDT 2004 | russ

Kris, this practice has gone on for years. I have never heard of any problems associated with this. I have heard "grumblings" about tin lead parts being processed with lead free paste, but have seen or heard of no data to support. Russ

lead free platings and tin lead

Electronics Forum | Tue Aug 31 19:50:44 EDT 2004 | davef

To take our turn at keeping everyone else on the straight and narrow. For more on lead contamination of no-lead solder, look here: http://www.aimsolder.com/techarticles/Lead%20Contamination%20in%20Lead-Free%20Electronics%20Assembly.pdf [We apolog

lead free platings and tin lead

Electronics Forum | Tue Aug 31 21:45:49 EDT 2004 | KEN

I have experienced this directly in SMT and wave solder. Fillet lift (can) be a direct indicator to lead enrichment (but its not the exclusive symptom). Lead enrichment in smt joints reduces the interfacial strength shortening the time to creep f

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