Brad, thanks. Now I know how to count them. :o) And yes the thinner layer
thickness was wrong. I just calculated that if I use
4,13.5,13.5,13.5,13.5,4 and can squeeze 8-mil traces onto the two inner
layers with 5-mil on the outer, everything should match up for a .063 board
with about 55 ohms per trace layer. Does that make sense to you?
Tim Hutcheson
Institute for Human and Machine Cognition
40 S. Alcaniz St.
Pensacola, FL. 32503
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