Homebrew PCBs

----- Original Message ----- 
From: "Ron Amundson" <ron_amundson@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, November 24, 2003 1:40 PM
Subject: Re: [Homebrew_PCBs] 4 layer diy


>
> > DIY PTH is difficult, let alone multilayer boards. Blind and buried vias
> > only make sense with six layers or more - completely out of the question
> at
> > home.
>
> The reason I would suggest 4 layer blind and buried vias is to avoid
having
> to drill 0.005" holes or smaller at home and then try to DIY PTH. I wonder
> how the board houses get decent through hole activation when the holes get
> that small. I would imagine the drills have a lot to do with it.
>
> I've been following the Markus' posts for a while. It appears he is really
> getting a process down for PTH on 2 layer.
>
> What frustrates me is the time it takes to get a 4 layer proto. If I can
run
> them at home, even if it takes 30 hours, I'm still way ahead of the
> commercial houses who take a minimum of 5 days plus another day for
> shipping.

I've just had some 4-layer proto boards made in 48 hours by PWT in Welwyn,
UK. The price was reasonable - about 500 GBP for three boards and the
quality was excellent. I even got the red solder resist my client wants for
their production boards.

Leon
--76  'p[;
Leon Heller, G1HSM
Email: aqzf13@...
http://www.geocities.com/leon_heller