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How To Set Profile In SMT Reflow Oven
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Application of lead-free solder
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SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Electronics Forum | Thu Jul 29 21:11:13 EDT 2004 | davef
Could be lots of things. With limited information about temperatures, solder alloy, and cleaning; we'll swing for the fence that you got these solder connections very hot. So hot that Pb oxide is dominating the solder joint surface instead of the
Electronics Forum | Wed Jul 28 17:34:27 EDT 2004 | Steve Stach
Hi Ralf, This discoloration may be re-oxidation. Fluxes are supposed to do three things (1) remove oxide, (2) promote wetting, and (3) protect surface from reoxidation. The solder paste possibly is not protecting from reoxidation. Best Regards, St
Electronics Forum | Tue Aug 22 11:23:40 EDT 2000 | Dr. Ning-Cheng Lee
Plating houses seem to exhibit various results. Unacceptable Ni oxidation levels appear to be related to poor Pd plating processes. Ni oxidation can occur at 3 process stages: 1) prior to the Pd being applied (Ni already oxidized) 2) during the p
Electronics Forum | Mon Jan 19 11:58:07 EST 2009 | slthomas
Like has been said, I would expect N2 to provide for shinier joints. On the other issue, which is it...O2 or compressed air? I would expect air to do nothing, and O2 might actually make your joints oxidize faster (duller appearance)...or blow up yo
Electronics Forum | Fri May 23 23:47:46 EDT 2008 | dint46
Wayne; Several things. 1.check the vendors and see what black oxide they are using are they the same ? It might be that. 2.You should bake your pcbs before the thermal stress is applied. To remove moisture. At your shop. The proce
