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January 2005

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Subject:
From:
Bruce D Stilmack <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Tue, 4 Jan 2005 06:19:06 -0500
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I know this has been discussed at length in the past, but I can not find an
answer to this question in the archives.  I am hoping one of you ( or maybe
even Jack) can answer this.  J-STD-001 talks at length about not violating
minimum electrical clearance.  I know that IPC-2221A has requirements for
both the PWB and the assembly with regards to minimum electrical clearance.
However, how does one make the connection between the two?  There is no
direct reference that I can find that pushes you to 2221 to look for this
information.  Also, and this is for Jack or those that were involved with
creating these specs, why are the assembly requirements located in the PWB
design spec?

Bruce Stilmack
GDLS-TO Manufacturing Engineer
(850) 574-4773
[log in to unmask]

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