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Subject: Re: [Homebrew_PCBs] Plating thru holes... electroplating question....

From: Tony Harris <kg4wfx@...>
Date: 2005-06-03

Aside from Thinktink is there anywhere else to get dry film resist? I don't want to get a huge quantity until I've tried it out first....

-Tony

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



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