Homebrew PCBs

On Thu, 08 Sep 2005 21:22:42 +0200, Phil <phil1960us@...> 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