a predetermined number of electrical contacts disposed on said second surface of said substrate, wherein said electrical contacts are {HEAD ~ conductive pads} that are coplanar with {TAIL ~ said ground layer} 
are coplanar with
a predetermined number of electrical contacts disposed on said second surface of said substrate , wherein said electrical contacts are { HEAD ~ conductive pads } that are coplanar with { TAIL ~ said ground layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL