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February 2011

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Subject:
Re: The NHTSA executive summary report does not mention tin whiskers
From:
"Upton, Shawn" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Upton, Shawn
Date:
Wed, 9 Feb 2011 16:28:38 -0500
Content-Type:
text/plain
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text/plain (155 lines) 
I'm guessing propriety information not quite relevant to the general
public.  Like, they used a Hibachi 123 processor for the CPU.  It's not
real relevant (unless if Hibachi's are known to be problematic), but it
looks good to know that NASA got to see what it was, and could say it
was not a factor.  If they didn't show the redacted region where it
would otherwise say "Hibachi", one might think they didn't get to see
the processor--and then wonder if NASA really did have unfettered access
to the whole works.

Shawn Upton, KB1CKT
Test Engineer
Allegro MicroSystems, Inc
[log in to unmask]
603.626.2429/fax: 603.641.5336

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Wednesday, February 09, 2011 4:24 PM
To: [log in to unmask]
Subject: Re: [TN] The NHTSA executive summary report does not mention
tin whiskers

I wondered the same thing and by WHOM and for what reason.   To protect
the innocents.

Victor,

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Wednesday, February 09, 2011 3:21 PM
To: [log in to unmask]
Subject: Re: [TN] The NHTSA executive summary report does not mention
tin whiskers

Hi Bob,

Interesting reading. I wonder why there's blacked out places in the
report?

You'll see this on pages 7, 20, 50, 54, 56, 57, 61, 62, 70, 75-77, 84,
87-90, 91, 93, 97, 100, 102, 133, 135, 137-139, 141, and 143-147.

Hmmmm. Just curious...

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Landman
Sent: Wednesday, February 09, 2011 3:29 PM
To: [log in to unmask]
Subject: [TN] The NHTSA executive summary report does not mention tin
whiskers

http://www.nhtsa.gov/staticfiles/nvs/pdf/NASA-UA_report.pdf

But...
 
If you do a search for the term "whiskers" in the full report , you will
see
that failure due to whiskers did happen. 
 
Section 6.6.2.3 (page 112) for example

Bob Landman
H&L Instruments, LLC
www.hlinstruments.com  
LDF Coatings, LLC
www.ldfcoatings.com 


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