Without knowing the level of sensitivity of the equipment/components and
the ability to control relative humidity, I'll have to contribute to the
Doug Pauls Mt. Dew Memorial Fund. I hear he's keeping them in the
freezer for awhile, so this really is turning into a slush fund.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick
Sent: Friday, January 23, 2009 8:39 AM
To: [log in to unmask]
Subject: Re: [TN] ESD Flooring - bare concrete
Dewey,
I think I understand your response, but the question still remains - is
a
bare [untreated with anything] concrete floor [without mats to trip
over]
able to minimize charge build-up?
His parts are crude, and pretty macroscopic by our standards. His
objective
is crude, and he needs it low cost, but reasonably safe for people and
product. I know if one were to do it the way we normally would, I would
coat the floor, or put down ESD tiles and call it quits. He is on less
than
a shoestring budget, trying to make do as best as he can.
The ESD people want to sell him mats and treatments that he can not
afford.
Hence the question
Steve
-----Original Message-----
From: Whittaker, Dewey (EHCOE) [mailto:[log in to unmask]]
Sent: Friday, January 23, 2009 10:26 AM
To: TechNet E-Mail Forum; Steven Creswick
Subject: RE: [TN] ESD Flooring - bare concrete
Obvious is a treated concrete floor with an ESD safe coating. The
downside is maintenance and cleaning.
Large ESD mats may be better with dedicated ESD safe work areas.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick
Sent: Friday, January 23, 2009 8:13 AM
To: [log in to unmask]
Subject: Re: [TN] ESD Flooring - bare concrete
Brian - Joyce,
This is HEAVY equipment [ie - dirty, filthy, grimy]. I have very little
concern about dirt and dust - just ESD suitability.
Any comments on suitability of the bare concrete floor to mitigate
charge
build-up and/or transfer?
Steve
-----Original Message-----
From: Brian Ellis [mailto:[log in to unmask]]
Sent: Friday, January 23, 2009 6:39 AM
To: TechNet E-Mail Forum; Steven Creswick
Subject: Re: [TN] ESD Flooring - bare concrete
Dust?
Brian
Steven Creswick wrote:
> Techies,
>
>
>
> My first Friday, pseudo-technical question - I have an acquaintance
that
is
> repairing pretty crude PWB assemblies used in the trucking industry
and
> needs to re-locate to gain more room. He certainly does not require
> clean-room conditions.
>
>
>
> My thought was that a bare concrete floor - free of oils and greases,
epoxy
> coatings, etc. - would work out ok for flooring. If he had carts, he
could
> attach small brass chains, etc.
>
>
>
> Was also thinking that the floor would give up moisture in the Winter
and
> absorb it during the Summer and thereby help buffer humidity swings.
>
>
>
> He still would require ESD work-stations.
>
>
>
> What say the more ESD gurus?
>
>
> Steve
>
>
>
>
>
>
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