[SI-LIST] Re: ESD, shoes, and hospitals...

  • From: "Tom Dagostino" <tom@xxxxxxxxxxxxx>
  • To: <zabinski.patrick@xxxxxxxx>, <si-list@xxxxxxxxxxxxx>
  • Date: Tue, 8 May 2007 15:53:42 -0700

Testing equipment will likely expose any issues with them and static.  =
When
the issues are exposed there is a high probability that the instrument =
will
die.  The response to static will be one of three, no effect, disrupts
operation, destroys unit.  It is likely that the manufacture of the
equipment has already done the static discharge test as part of the
certification process.  There are likely standard to which these pieces =
of
equipment must pass.

I think most semiconductor fabs have test equipment that everyone who =
enters
the fab must use to show the anti static protection measures the fab has
employed is working.  You might want to check out what they use.

Tom Dagostino
Teraspeed(R) Labs
13610 SW Harness Lane
Beaverton, OR 97008
503-430-1065
tom@xxxxxxxxxxxxx=20
www.teraspeed.com=20

Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
401-284-1827

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
On
Behalf Of Zabinski, Patrick
Sent: Tuesday, May 08, 2007 3:21 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] ESD, shoes, and hospitals...


A recent article [1] states a Swedish hospital might ban
Crocs shoes (all-plastic clogs) to avoid static interference. They do =
not
cite any specific failures or severe problems with static charge, but
they're concerned enough to consider banning these particular shoes.

This article caught the attention of a few folks here, and
we thought about running some experiments to see how bad of
a problem we have in our hospital environments, but we're
not exactly sure of what experiments we should/could run
to determine if we have a problem, how bad of a problem we have, and =
what
shoe types are of most concern.

Got any ideas? =3D20

Are there some simple tests we can run that measure static buildup (in
Volts) on people wearing different footwear?  Is there a simple way of
characterizing the relative performance of different footwear (e.g., =
ability
to build charge more than other shoes)?

We have thousands of pieces of medical equipment that might
be susceptible to static electricity.  Any ideas how we
can non-destructively test the equipment?

Thanks,
Pat Zabinski




[1] We believe the original article was published in
The Local (http://www.thelocal.se/).  A copy can be
found at http://www.wcsh6.com/printfullstory.aspx?storyid=3D3D58243.
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