I need some clarification on the requirement for Plating/Coating
Thickness.  The 3/A page requires additional copper thickness above
class 3 to be added to tables 3-3, 3-4 and 3-5.  Does this also apply to
the minimum wrap thickness?  (Example) Is it required for a
non-conductive filled through via to have .944 mils of wrap (table 3-3)?
It's a bit confusing as it says to apply to minimum copper average and
minimum thin areas.   

 

Wendi

 

 


 
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