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1996

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Subject:
Re: Dielectric/plated barrel separation in PWB holes
From:
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Date:
Wed, 18 Sep 1996 22:04:34 -0400
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Dennis 

The statement about "Hole wall dielectric/plated hole separation" is a direct
carry over from IPC-RB-276 Table 10 which as been in existence since 1992. It
is the intent to allow hole-hole-wall-pullaway to any extent as long as the
hole is not collapsed and the function is not degraded.  This was a change
from IPC-ML-950 which only allowed 40% hole-wall-pullaway.  This is the first
time any question has come up since RB-276 was issued and the suppliers and
users seem satisfied.

Phil Hinton 
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