Priest of the Order of the Butterfly
Posts: 874 from 2007/4/9
From: Kingston upon ...
Removing lead from solder isn't a **good** idea. This problem is know for decades already...
It makes most hardware fail in a short time range... (in comparison to pre ROHS).
Dr. Ronald Lasky of Dartmouth College reports: "RoHS has been in force for more than 15 months now, and ~$400B RoHS-compliant products have been produced. With all of these products in the field, no significant numbers of tin whisker-related failures have been reported." Whisker growth occurs slowly over time, is unpredictable, and not fully understood, so time may be the only true test of these efforts. Whisker growth is even observable for lead-based solders, albeit on a much smaller scale.
It's just not that clear cut: reducing the amount of Lead and Mercury dumped into landfills is a no-brainer. Admittedly, the battery industry is responsible for the majority of it, but PCBs are so ubiquitous in the modern age that legislating for lead-free solder is going to have a big effect on reducing the toxicity of the urban environment. [ Edited by boot_wb 04.04.2012 - 12:57 ]
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