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November 2001

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Subject:
Re: Aspect Ratio
From:
George Milad <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 12 Nov 2001 22:54:51 EST
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Aspect ratio is the relation between the hole diameter and the thickness of
the via/board.
A 10 mil hole in a 62 mil board is an aspect ratio of 6:1
Buried vias maybe 1:1 like 4 mil hole that is 4 mil deep, or even less like a
six mil hole that is only 4 mil deep.
Hope this helps
George Milad
Shipley company

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