Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: [Homebrew_PCBs] What is a Via?
From: DJ Delorie <dj@...>
Date: 2010-03-31
No, technically if you have a ∗single∗ sided board, there's no copper on
the other side to connect to, you'd have to use a wire jumper.
However - in PCB, (or any layout package), you can use another copper
layer to keep track of where you need jumpers. In that case, a regular
via would serve that purpose, as well as the copper traces on the fake
layer. That also makes the design rule checkers happy.