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Guest Message by DevFuse

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My Deca unit caught on FIRE!


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143 replies to this topic

#141 OFFLINE   Laxguy

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Posted 10 December 2012 - 09:16 AM

Great research!
I think I won't read the articles, though, as I want to sleep tonight! :eek2:
"Laxguy" means a guy who loves lacrosse.

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#142 OFFLINE   dmurphy

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Posted 10 December 2012 - 09:23 AM

Very interesting article.
Perhaps my Deca grew whiskers and needed a shave.
http://www.sc.edu/ne...71#.UMRY4KNMHJt


Been there, done that, been on the unlucky end of tin whisker contamination.

Quoted from: Page 52: http://www.filibeto....A5201-10024.pdf

Zinc Particulate Contamination
Metallic particulates can be especially harmful around electronic equipment. This type of contamination may enter the data center environment from a variety of sources, including but not limited to raised floor tiles, worn air conditioning parts, heating ducts, rotor brushes in vacuum cleaners or printer component wear. Because metallic particulates conduct electricity, they have an increased potential for creating short circuits in electronic equipment. This problem is exaggerated by the increasingly dense circuitry of electronic equipment.
Over time, very fine whiskers of pure metal can form on electroplated zinc, cadmium, or tin surfaces. If these whiskers are disturbed, they may break off and become airborne, possibly causing failures or operational interruptions. For over 50 years, the electronics industry has been aware of the relatively rare but possible threat posed by metallic particulate contamination. During recent years, a growing concern has developed in computer rooms where these conductive contaminants are formed on the bottom of some raised floor tiles.
Although this problem is relatively rare, it may be an issue within your computer room. Since metallic contamination can cause permanent or intermittent failures on your electronic equipment, Hewlett-Packard strongly recommends that your site be evaluated for metallic particulate contamination before installation of electronic equipment.


I've seen bulk power supplies flame out in front of my eyes due to whisker contamination.... it's rare, but real.

#143 OFFLINE   Richierich

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Posted 10 December 2012 - 09:24 AM

Saw this paper and thought of this thread. Interesting read.http://www.kodiakcon...ource_Final.pdf


Quite an amazing Article and amazing Research and to think that small amounts of Lead could solve this problem. :)
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#144 OFFLINE   Laxguy

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Posted 10 December 2012 - 09:26 AM

Quite an amazing Article and amazing Research and to think that small amounts of Lead could solve this problem. :)


Yes, but then you'd have the huge problem of kids eating DECAs and such......:nono2:
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