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February 2010

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Subject:
From:
John Burke <[log in to unmask]>
Reply To:
(Leadfree Electronics Assembly Forum)
Date:
Tue, 2 Feb 2010 08:57:21 -0800
Content-Type:
text/plain
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text/plain (78 lines)
They also stated publicly a few months ago that the problem was floor
mats......8-)


John Burke
(408) 515 4992


-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of TIMOTHY MCGRADY
Sent: Tuesday, February 02, 2010 7:42 AM
To: [log in to unmask]
Subject: Re: [LF] Perfect opportunity for tin whiskers induced failures -
Toyota did not install brake override systems despite complaints

Toyota stated publicly today that the cause was not electronic in nature.

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Pete Houwen
Sent: Tuesday, February 02, 2010 9:24 AM
To: [log in to unmask]
Subject: Re: [LF] Perfect opportunity for tin whiskers induced failures -
Toyota did not install brake override systems despite complaints

the electronic controlled throttle also makes traction control far easier to

implement.  Since loss of traction is far more common than stuck throttles,
they saved money and increased safety.

Of course, including a "brake wins" algorithm would have saved lives.  And
amortized over millions of cars, software is almost free.

I don't know if Toyota has nailed the problem with the friction solution.
But it
has been vetted by the NHTSA, and they seem to agree.  I don't doubt there
is also an electronic failure problem - electronics fail.  But what I do
know is there is no indication so far of a tin whisker problem.  It concerns
me that

blaming any electronic failure on tin whiskers without any scientific
evidence is really no more valid than banning lead in solder with no
scientific evidence.
There's enough data, crying wolf won't get RoHS repealed.  That's more
likely to just make it harder to stop the next legislative mistake.

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