[tinwhiskers] Re: Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media
- From: Steve Smith <steve@xxxxxxxxxxxxxxxxxxxxxx>
- To: Rod <rod.dalitz@xxxxxxxxxxxxxxxx>
- Date: Sat, 20 Feb 2010 08:19:20 -0800
Hello Rod,
Actually, Rod, it *can* cause similar defects because whiskering tends
to fall in patterns, as a particular part might be processed by a
particular manufacturer in a particular time-frame, and be much more
prone to whiskering (for reasons still not understood). This has been
seen in MANY cases with Defense equipment, where intensive follow-up
and failure analysis is the norm. Certain production lots of certain
products are occasionally found to be VERY much more prone to
whiskering than other lots. It is directly traceable to an individual
part.
Not all parts whisker equally.
Where a particular diode or Integrated Circuit may be more prone to
whiskering, and a failure related to THAT part, because of its
particular physical location to other leads of itself, other parts
and particular circuit-board traces can cause runaway acceleration
more-likely-than-not, then you WILL see a predominance of a
particular consequence.
Steve Smith
R> On 18 Feb 2010, at 19:31, Bob Landman wrote:
>> ... lead free soldering is also a problem and can cause tin whiskers to gow
>> which cause short circuits.
R> While this is a true statement, it seems unlikely that tinwhiskers
R> would cause similar symptoms in many cases. More probable is a
R> variety of defects, many of them gross errors resulting in no engine power.
R> "To the man with a hammer, everything looks like a nail."
R> regards, Rod
R> rod.dalitz@xxxxxxxxxxxxxxxx
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--
Best regards,
Steve mailto:steve@xxxxxxxxxxxxxxxxxxxxxx
www.consultingscientist.us
http://www.pickensplan.com/
Other related posts:
- » [tinwhiskers] Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media- Bob Landman
- » [tinwhiskers] Re: Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media- Patrick Bruneel
- » [tinwhiskers] Re: Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media- Rod
- » [tinwhiskers] Re: Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media - Steve Smith
- » [tinwhiskers] Re: Electronic tin whiskers may be behind Toyota recalls, EMI discounted by manufacturers, media- Bob Landman
