Re: [oc] Multi-layer PCB boards, can it be done in your kitchen?

["Jim Dempsey" <dempsey@northnet.net>]

There was a company that was around about 15-20 years ago that used a
different type of board technology suitable for low volume board production.
Perhaps they are still around and one of the older forum members may
recall the name. In crude terms the technique they used was a single layer
board with a tacky surface. On this board they used a plotter like device to
lay wire from point to point. The wires were plotted in a manner to match
signal timing (e.g. all lines on a bus are same length). After all
connections
are made then a top layer is tacked on.

Jim Dempsey

----- Original Message -----
From: "Paul McFeeters" <paul.mcfeeters@ntlworld.com>
To: <cores@opencores.org>
Sent: Monday, November 19, 2001 4:25 AM
Subject: [oc] Multi-layer PCB boards, can it be done in your kitchen?


> Hi,
>
> in my never-ending quest to get a XC2S200-6FG456C mounted onto a
development
> board for
> my I/O hungry projects I was wondering if anybody had experience of
either:
>
> 1. making their own multi-layer PCB boards or
>
> 2. how much would it cost for say a run of 50 boards to be manufactured by
a
> PCB fabricator
> would be?
>
> If you design the boards layer by layer, glue them together, drill the
holes
> and fix the
> mounting posts for the inter-layer connections can it be done at home? I'm
> not equipped
> to try this just yet but I foresee this as being the only way to get a
> 456-Spartan II
> onto my own boards at the moment. Are the virgin copper clad boards of
> sufficient quality
> to allow this overlaying?
>
> On a simpler note, does anybody know a good source for SIMM or DIMM
sockets?
> I need some
> serious storage space on my FPGA board so am going to fit some SIMM
sockets
> onto it. I
> can also fit DIMMs but their high I/O count and high density connectors
will
> make the
> soldering a pain until I can get a DIMM daughterboard made up so prefer
> SIMMs for now.
> I have quite a few old 4MB, 8MB,16MB and 32MB SIMMs just sitting here
> collecting dust
> so might as well use them for something.
>
> Thanks
>
> Paul
> paul.mcfeeters@ntlworld.com
> "I'm not crazy, I'm sane its just the rest of the world that's crazy."
>
>
>
>
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