Whiskers

How much do all you experts know about whiskers on electronic circuitry?
This is not a joke.
If any want to know? Ask.

Terhune & Brian K. were talking about that very recently!


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
should things get worse after this,
PCR

"poatt" wrote in message ...
| How much do all you experts know about whiskers on electronic circuitry?
| This is not a joke.
| If any want to know? Ask.

Maybe poatt was referring to a crystal detector?

J
"PCR" wrote in message
...

Terhune & Brian K. were talking about that very recently!


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
should things get worse after this,
PCR

"poatt" wrote in message
...
| How much do all you experts know about whiskers on electronic circuitry?
| This is not a joke.
| If any want to know? Ask.

jt3 wrote:
Maybe poatt was referring to a crystal detector?

J
"PCR" wrote in message
...

Terhune & Brian K. were talking about that very recently!


Or tiny filaments that sometimes develop on the surface of electronic
circuits coated with tin or zinc. The filaments sometimes cause failures
in the elctronics when they form shorts between conductors.

Appears to have affected satilites, at least two models of missles,
fighter jet radar and reactor monitoring equipment (false low coolant
pressure "reading" shut a reactor down).

Apparently a problem with SOME floor tiles used with the raised floors
in some data centers too. The whiskers form on the zinc plated bottom of
the tiles, get knocked off, are blown around by the air conditioning and
short the equipment out.

http://nepp.nasa.gov/whisker/background/index.htm
http://nepp.nasa.gov/whisker/failures/

Yea, I'm sure it was something real like that. But I can't help it! Sorry!


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
should things get worse after this,
PCR

"RobertVA" wrote in message ...
| jt3 wrote:
| Maybe poatt was referring to a crystal detector?
|
| J
| "PCR" wrote in message
| ...
|
| Terhune & Brian K. were talking about that very recently!
|
|
| Or tiny filaments that sometimes develop on the surface of electronic
| circuits coated with tin or zinc. The filaments sometimes cause failures
| in the elctronics when they form shorts between conductors.
|
| Appears to have affected satilites, at least two models of missles,
| fighter jet radar and reactor monitoring equipment (false low coolant
| pressure "reading" shut a reactor down).
|
| Apparently a problem with SOME floor tiles used with the raised floors
| in some data centers too. The whiskers form on the zinc plated bottom of
| the tiles, get knocked off, are blown around by the air conditioning and
| short the equipment out.
|
| http://nepp.nasa.gov/whisker/background/index.htm
| http://nepp.nasa.gov/whisker/failures/