Electronics Forum: lead and lead free paste mixed (Page 1 of 127)

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

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 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 platings and tin lead

Electronics Forum | Tue Aug 31 19:17:43 EDT 2004 | russ

Now see Dave, now I have some good info on why it is "bad", This must be the lead enrichment I have heard about but never got any substantiated data or explanantion. I wonder how much weaker or less reliable these are. Is there any data that you k

lead free and tombstoning

Electronics Forum | fredericksr |

Thu Feb 16 12:42:03 EST 2006

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 and tombstoning

Electronics Forum | Fri Feb 17 09:02:21 EST 2006 | russ

proper pad geometries, accurate placement, and good reflow profile. Are you having problems right now?

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

Color theme of lead free

Electronics Forum | Tue Jun 01 19:42:46 EDT 2004 | Ken

The biggest fear is mixing the solder pastes and bar solder. Had a training program for teaching folks what the alloys are and how to read them. I have locked up the bar solder and use the buddy system to restock the pot. Put up many signs on le

lead free no-clean printing paste

Electronics Forum | Thu Jul 20 13:01:07 EDT 2000 | qsheng

What is the difference of formulation No-Clean Sn63 with No-Clean lead free paste? Is there techniocal data in detail for performance property of No-Clean lead free paste (for example, viscosity, solderability, tack, print life, reflow profile)? Is

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