Homebrew PCBs

Hi all,

I'm new to PCB design and home made boards. I am planning to use the 
photo etching technique using transparants printed with a high quality 
inktjet printer (Canon IPX5200R). I was looking on the web for a test 
pattern to try out etching for the first time, but couldn't find any. 
Using Eagle 4.15 I've created one myself. The idea is I've copied the 
same pattern 10 times and will expose each part for a longer time (e.g. 
every 20 seconds, from 3 minutes on or so) by uncovering it during the 
photo phase. The goal is to test both the printer resolution and the 
etching technique to find out exposure times and limitations regarding 
track/spacing widths.

As I have very little experience in creating PCB's I've taken a shot at 
what the test pattern looks like. I've included a PNG image of it, but 
can provide the .brd file to is anyone cares. Now my question is whether 
this board looks any good for my goals. The track widths I've used are 
0.1, 0.15, and 0.2 mm; the spacings are also those values. The isolation 
of the polygon is 0.25mm and the drill holes are 0.6 and 0.8mm. I also 
added SO8 package and 0402 till 1206 SMD packages. Am I missing some 
frequently used patterns that I should test to?

Thanks in advance for you comments,

Ronald Vanschoren


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