Newsgroups: sci.electronics
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: how to make 3+ layered boards?
Message-ID: <1991Jun17.173058.23813@zoo.toronto.edu>
Date: Mon, 17 Jun 1991 17:30:58 GMT
References: <pad.676610517@probitas> <1991Jun11.125843.105@nuchat.sccsi.com>
Organization: U of Toronto Zoology

In article <1991Jun11.125843.105@nuchat.sccsi.com> steve@nuchat.sccsi.com (Steve Nuchia) writes:
>> Subject: how to make 3+ layered boards?
>
>For production you have to pay someone who knows how to do it.  Even if you
>had all the materials, it would still be just about impossible without
>the equipment...

It *is* possible -- I know people who've done it -- but without a fair bit
of moderately costly equipment, you're not going to consistently get quality
boards out of it.  Dependably getting high-quality plated-through holes
requires precise control of things like solution chemistry and temperature,
plus a substantial debugging process to get the parameters set right.  This
essentially amounts to setting yourself up as a board production shop, at
considerable cost.  Adding copper is a lot harder than subtracting it; there
isn't any basement-bench way of doing it that reliably gives good results.
If you want something that will give you a good board the first time every
time, and don't want to spend a lot of money and effort on it, you need to
pay someone who *has* spent the money and effort.
-- 
"We're thinking about upgrading from    | Henry Spencer @ U of Toronto Zoology
SunOS 4.1.1 to SunOS 3.5."              |  henry@zoo.toronto.edu  utzoo!henry
