With regards to my last email, the terms supported meant, with a land/pad and 
unsupported meant without lands/pads.  Here it is again with padless replacing 
unsupported.


     Address,
     
     Are there any Technical Publications on comparing the reliability of 
     padless and padded vias/pths?  What other avenues should I be concerned 
     with should I have padless vias and pths (internal and external) where 
     conductors do not intersect?
     
     My reading up until now says padded vias and pths are more reliable 
     than there counterparts.  Does this still hold true?  All other vias 
     and pths will have A/Rs and teardrop pads with no tangent and/or 
     breakout at the egress.  
     
     Pass the info.  Please advise.  Later
     
     John Gulley

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