Anti-static sponge?

M

man

Guest
I hope that I direct this question to the proper group.

I am looking for packing material that would allow me to safely
ship a microprocessor-- I do not have the original packaging. I
have seen ICs placed in a black/grey sponge-like material that
seems to protect the pins from bending. Could anyone tell me
what this stuff is called and where I might be able to get it? I
have tried several terms, but all I can find is deskmats and
wrap. Thanks in advance.
 
Digikey carries the 3M foam. It's not cheap.
It also sucks up RF like a sponge :)
 
Dave VanHorn wrote:

Digikey carries the 3M foam. It's not cheap.
It also sucks up RF like a sponge :)



I've heard of it being used to good effect pasted to the inside cover of
Click to expand...
a cases containing troublesome RF circuits.

Never had to do it myself, though.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
 
I may be the guy who told you about it.

I use it in my part-15 box to kill reflections, as well as in PC cases, to
reduce the noise floating around on my bench.
 
In article <0NCdnUb_csCxeUzcRVn-pg@comcast.com>,
Dave VanHorn <dvanhorn@dvanhorn.org> wrote:
I may be the guy who told you about it.

I use it in my part-15 box to kill reflections, as well as in PC cases, to
reduce the noise floating around on my bench.
Click to expand...
I wouldn't use conductive foam in PC cases... it tends to degrade into
conductive crumbs after a few years of exposure to air. This may vary by
brand; the genuine 3M stuff seems pretty bad. Antistatic foam is much
better.
 
When I do this, I put them in zip-lock bags, for that reason.
 
On Tue, 28 Dec 2004 05:03:03 GMT, man <meal@hotdog.ok> wrote:

I hope that I direct this question to the proper group.

I am looking for packing material that would allow me to safely
ship a microprocessor-- I do not have the original packaging. I
have seen ICs placed in a black/grey sponge-like material that
seems to protect the pins from bending. Could anyone tell me
what this stuff is called and where I might be able to get it? I
have tried several terms, but all I can find is deskmats and
wrap. Thanks in advance.
Click to expand...
It's more to dissipate static than to protect the pins, although it does
help with that as well.

One source for the stuff you're looking for is www.jameco.com.
Jameco #: 13864 is a hunk of the foam; cut a piece to fit. Put that in a
shielding bag Jameco #: 78668 and then into the shipping container.

One do-it-yourself approach (note: observe normal procedures for
handling electrostatic sensitive devices) would be to wrap the processor
in a couple layers of aluminum foil, wrap that bundle loosely in brown
paper, then put it in a small box, packed with crumpled newspapers. Pack
that in a larger shipping container, again using newspapers to cushion
the inner box.

--
Rich Webb Norfolk, VA
 
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