Electronics Forum: lead and free (Page 1 of 371)

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

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

Can lead free and non lead free production mix in the same mach

Electronics Forum | Wed Apr 26 01:18:33 EDT 2006 | ge_lim

Hi We are in the process of developing a lead free product to be used in a non lead free selective soldering machine, i do have concern in these, and hope you guy can share your experienced expert opinion: 1. What does it take to convert to lead fre

Can lead free and non lead free production mix in the same mach

Electronics Forum | Wed Apr 26 07:37:34 EDT 2006 | amol_kane

"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from

Can lead free and non lead free production mix in the same mach

Electronics Forum | Wed Apr 26 07:37:52 EDT 2006 | amol_kane

"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from

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

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