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Date: | Mon, 13 Jan 1997 13:50:59 -0800 |
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Hi guys,
I wound up here thanks to Yahoo and I do have aquestion for you,
although I do not know if I am in any position to ask you to answer me.
If I need to sign up for something, could you fill me in. Anyway my
question is this: A via passes through a four layer board, is a hole
drilled in the ground and the power layers. What is used to insulate the
ground and power layers from the solder that eventually will fill this
hole? Is it a form of mask? I thought mask prevented it from the top of
a layer (i.e. the top of the board), but not the width if a board is cut.
Anyway, please get back to me on this. Thanks.
Matt
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