The reference I was using for via size is:
http://www.ultracad.com/articles/viacurrents.pdf

  The fab house I use has a trace thickness of 1.3mil-2mil  (standard 
1oz/sqft) and  a via wall thickness of 0.8mil-1.2mil.

Phil

-- 
--------------------------------
Long ago when men cursed and beat the 
ground with sticks,  it was called witchcraft..

Today, it's called golf.


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