Hello Committe members, I have a question about Copper thickness in Blind Vias. In the IPC-6012 ,provided two selection for it in the table; one is blind vias and the other is Low Aspect Ratio vias ,I wonder how to calculate the  Aspect and  if any true data instead of the uncertainty word " low aspect" .Wish get your advice !

Regards

Constantino J. González
ACME, Inc.
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