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