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January 1998

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Subject:
Haloing Part 2
From:
Ron Payne <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Wed, 14 Jan 1998 11:08:31 -0800
Content-Type:
text/plain
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text/plain (26 lines) 
We have a design with a external plane to board edge clearence of .025 inch
on polyimide material. IPC-6012 para 3.3.1 allows up to 50% haloing to the
nearest conductor. Can the conductor in this case be considered the external
plane or is the requirement refering only to traces and pads?

If I have greater than 50% haloing is it rejectable per IPC-6012 para 3.3.1?

Rejectable per Mil-PRF-55110F para A.3.5.1.1?

Thanks,

Ron Payne
PRIMEX Aerospace

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