I used 10 mil traces and sometimes used a backplane for high current and/or RF applications.
The toner process didn't always work perfect everytime, but several boards did come out perfect.

-----Original Message-----
From: Mike Hord [mailto:gaidinmd@HOTMAIL.COM]
Sent: Friday, June 20, 2003 3:31 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: [EE] My solution - for double side pcb production


>I have never successfully made a pcb using the photo sensitive process, I
>just never get the timing right.

That's odd; I hit bang-on every single time I've done photosensitized masks.

>I have had good to ok success using a LaserJet printer, mirror the image,
>print it on the thinnest and smoothest paper we could find or use the
>plastic sheets they started to sell.  Iron it on to the copper board with a
>with a clothes iron, then soak the paper in water to peel it off, thus
>leaving only the toner.  I would then drill two reference holes and repeat
>the same process for the other side. Then use Ferric Chloride for etching.

The toner transfer method has given me very poor results.  What size traces
were
you working with?  Did you use ground planes at all?

Mike H.

_________________________________________________________________
The new MSN 8: advanced junk mail protection and 2 months FREE*
http://join.msn.com/?page=features/junkmail

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu