Here is how I would settle such a dispute:

Call a meeting with the engineer and the person responsible for
testing your area for esd and have the engineer hold an esd
fieldmeter wrapped inside the foam so that you can still see the
readout.   Have him watch the readout as he generates a 1000v charge
by scuffing his shoes on a non-ground carpet, or some other known
generative method.

You will accomplish two things by doing this.
1.  Prove whether or not the charge generated reaches the meter (and
therefore the assy).
2.  Educate both the engineer and yourself.

Now go and try it with the materials that you think you should be using.

Case closed.


At 12:30 PM -0500 5/21/01, Neda Thrash wrote:
>** High Priority **
>
>Hello everyone! I need help settling a dispute. I am aware of the
>fact that the pink foam designed for packing esd sensitive
>assemblies helps eliminate the possibility of a charge being
>generated during a transport while cushioning the product but I have
>an engineer telling me that the assemblies are safe if holding  the
>assembly in hand while ungrounded as long as the foam separates the
>hand at the point the pcb is held. If someone knows this to be true
>please send me more information on this because this contradicts
>what I have always been taught and what I am teaching. I need your
>help ASAP!
>
>TIA, Neda
>
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Phillip A. Bavaro
QUALCO/\/\/\/\  Incorporated
Manufacturing Engineer, Staff
[log in to unmask]
Cell (619) 602-8644 (offsite, after hours)
Pager (619) 271-3640
Tel (619) 658-2542 Office/voice mail
Cell (619) 845-9968 (workday)
Fax (619) 658-1584

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