Electronics Forum | Thu Sep 27 17:25:33 EDT 2007 | chef
The short answer is immediately after reflow the problem occurs. To be more exact, what you are describing is not "rust". Rust occurs in iron. The oxidation that occurs in Tin-Lead has been sometimes called "white rust". Either way, oxidation occur
Electronics Forum | Mon Oct 01 15:44:13 EDT 2007 | hussman
A simple answer is never. Tin lead will oxidize when exposed to oxygen, but it will not rust away like normal steel. I have old equipment from the 1920�s and 1930� that have solder joints as robust as the day they were made. Maybe not as shinny, b
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