[tinwhiskers] Re: Re-balling SAC BGAs
- From: Steve Smith <steve@xxxxxxxxxxxxxxxxxxxxxx>
- To: Rod <rod.dalitz@xxxxxxxxxxxxxxxx>
- Date: Sun, 1 Aug 2010 10:26:36 -0700
Rod,
The irony is that even if the EU reversed its ROHS TODAY, and all the
"environmental" interests instantly reversed their stances and
promoted "Lead is good!" to the end of a massive worldwide public
reeducation campaign, it would take at least ten years to flush all
the pure-tin-parts out of the worldwide manufacturing/distribution
system, assuming all components manufacturers cooperated with the same
alacrity that they converted to pure-tin in the first place.
The damage has been done. It cannot easily (if at all) be undone.
The reliability and, for that matter, the useful life of everything
electronic has been dramatically degraded.
Now we need effective means to deal with the consequences.
Steve Smith
R> On 1 Aug 2010, at 16:56, Steve Smith wrote:
>> I have a patent-pending on a process that in theory will eliminate or
>> at least mitigate whiskering propensity of pure-tin finishes by one
>> to three orders of magnitude, at an estimate...
>> The only certain way to deal with the tin-whisker-risk TODAY and in
>> the months and years to come is a physical barrier...
>> Over the last five years, I have developed a conformal coating that
>> does just that, based on the mathematical physics of elastomers.
R> Wow! that may be expected to have a wide application, and sounds
R> profitable. Does that mean you will be strongly in favor of the RoHS ban on
lead?
R> regards, Rod
R> rod.dalitz@xxxxxxxxxxxxxxxx
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--
Best regards,
Steve mailto:steve@xxxxxxxxxxxxxxxxxxxxxx
www.consultingscientist.us
http://www.pickensplan.com/
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