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From: neighbor@csd4.milw.wisc.edu (Jeffrey Alan Ding)
Newsgroups: sci.electronics,rec.audio,comp.sys.apple
Subject: PC board photo etching kits
Message-ID: <2392@uwmcsd1.UUCP>
Date: Thu, 2-Jul-87 01:02:51 EDT
Article-I.D.: uwmcsd1.2392
Posted: Thu Jul  2 01:02:51 1987
Date-Received: Fri, 3-Jul-87 04:58:16 EDT
Sender: news@uwmcsd1.UUCP
Reply-To: neighbor@csd4.milw.wisc.edu.UUCP (Jeffrey Alan Ding)
Organization: University of WI-Milwaukee
Lines: 17
Keywords: PC boards,GC electronics
Summary: Anyone out there make your own PC boards?
Xref: mnetor sci.electronics:882 rec.audio:2321 comp.sys.apple:1867

References:



Hello.  Does anybody out there etch PC boards?  I have a kit from
GC electronics that uses chemicals to transfer a pattern onto the PC board.
The artwork for the pattern is done on transparent plasic.  The artwork is
placed onto a PC board which is photo sensitized and exposed to Ultra Violet
light.  Then the PC board is developed and the pattern appears on the
PC board.  This method is very useful if multiple PC boards are wanted having
the same circuit design.

I'm wondering if anybody out there has used this stuff.  I'm having a bit
of trouble photo sensitizing my own PC boards.  I've tried the process
with PRE-sensitized boards and it works great.  But the boards that I
sensitize do not work at all.  If any of you have any experience doing
this I would appreciate any info on how to make it work.  Oh one more thing,
I'm using POSITIVE method.  There are both positive and negative methods.

Thanks in advance......             Neighbor