[sdiy] Tin Whiskers

[s]

One thing that is suspected to cause them (or at least
where they pop up a lot) is where the metal is bent or
has some pressure/stress on it... would a lacquer
coating work, or would they grow out through the
coating? I imagine most coatings would be pretty thin.

Hmmmmm. There are companies that have said they have
developed alloys that resist whiskering, but nobody's
talking as of yet.

s


--- Richard Wentk <richard at skydancer.com> wrote:


> 
> Yeah, but so what? Anyone who knows what they're
> doing can simulate the 
> whiskers in software. ;-)
> 
> I think - leap in the dark here - it's hard to solve
> a problem when you 
> don't know what the cause is.
> 
> Lead works. Lead is banned. Lead isn't a solution.
> Long term once the 
> industry wakes up I expect some other alloy will be
> the fixer.
> 
> Short term, it's hard to imagine a solution that
> doesn't severely limit 
> maintenance access. A naive attempt might involve
> lacquer coating. But 
> since this mostly won't affect local potentials, it
> might not do anything 
> useful. And the only way to get full coating,
> especially under ICs, would 
> be full immersion - problematic, as a process.
> 
> Richard
> 
> 
> 



		
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