Homebrew PCBs

I did look over my traces after removing the toner, no pin holes 
that I could see with a loupe.  To make sure i was getting a good 
look, I went outside where the sun is shining and looked again, very 
good, solid, copper traces.  I don't know for sure if it is because 
of the transfer paper I used or the heat gun - flash over of the 
toner after transfer.  Either way, three boards, no pin holes which 
for this cat is pretty darn exciting!

Chris








--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:
> On Thu, 08 Sep 2005 21:22:42 +0200, Phil <phil1960us@y...> wrote:
> 
> >
> > I use a copier to lay down the toner and even when I crank up the
> > density I still get pinholing.  It's the nature of the toner 
process.
> >  If you look at the transfered toner with a microscope, you can 
see
> > that it is still just a bunch of plastic particles.   However, 
with a
> > really fast etch, I find pinholing to be much reduced.  That's an
> > argument for hotter etchant.
> 
> 
> With inkjet paper and a fuser i don't have pinholing, but with 
silicone  
> paper i get it again, which is kind of a problem and why i don't 
use it  
> anymore at the moment. Must try hot air reflow of the toner one 
day....
> 
> ST