Exactly, but has anyone deposited solder or solder paste to form traces and
larger pads on such a board? 

And what about reducing the pad/space size to 5 mils or even smaller (to
whatever minimum size is practical) in order to allow for larger pads and
traces to be made by combining the tiny pads with solder?

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Robert Young
Sent: Thursday, November 15, 2007 12:33
To: Microcontroller discussion list - Public.
Subject: RE: [EE] Idea: Printing SMT Circuit Boards with solder bleed
tracesbetween tiny copper islands.



> From: jamesnewton@massmind.org
> To: piclist@mit.edu
> Subject: [EE] Idea: Printing SMT Circuit Boards with solder bleed traces
between tiny copper islands.
> Date: Thu, 15 Nov 2007 11:53:33 -0800
> 
> Idea: Printing SMT Circuit Boards with solder bleed traces between tiny
> copper islands.

 http://www.philmore-datak.com/np/Page%2014.pdf

Other versions exist.  I've made my own with 30mil and 10mil squares on 50
or 25 mil centers on one side and solid plane on the other side.  Both as
small etched areas on other boards, to be sheared off as needed or milled
them on an LPKF.

Rob

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