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From: email@example.com (Jeff Walther)
Subject: Re: Multilayer PCB:s, HOW?
Organization: Illuminati University
NNTP-Posting-Date: Thu, 19 Sep 2002 01:38:02 CDT
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Date: Thu, 19 Sep 2002 06:38:02 GMT
In article , Roger Johansson
> "Bill sloman" wrote:
> Thanks to all who replied. I had kind of imagined that you could buy
> some 4 layer laminate and do something with it. Not until I began to
> think about it in practical terms I realized that it was impossible to
> do that. The inner layers need to be etched before the laminate is
> moulded together.
> The link posted by Scott Armitage shows that it is a rather
> complicated industrial process.
> For the amateur it is possible to etch doublesided boards and glue
> them together with some isolation layer inbetween.
> If the other layers are drilled away at some places it would be
> possible to achieve contact with the inner layers.
> The industrial process involving plating and other chemical tricks is
> too complicated for the amateur, so he has to cut away more board
> material to be able to solder the connection directly.
You can get a pair of four layer prototypes made for about $135 shipped
I've used them once and was very happy with the result. I don't know if
they're consistently good, but my one project worked out well.
A friend will help you move. A real friend will help you move a body.
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