Homebrew PCBs

On Fri, 03 Jun 2005 21:06:59 +0200, Tony Harris <kg4wfx@...> wrote:

> Ok, next stupid question...
> Let's say I drill all my holes, and plate.
> Now I take it to etching - how do I protect my thruholes from being  
> etched away?  Also, if I am doing toner transfer, do I
> transfer the toner - drill - plate then etch?
> -Tony


You must laminate dry film resist, it tents the holes.
TT and THP could perhaps be done by plating tin as resist over the copper,  
but i dunno if negative TT and plating in the "gaps" works well.

ST