In {HEAD ~ a preferred embodiment}, {TAIL ~ the pole piece} is smaller than the substrate such that the signal contacts and part of the ground are not covered by the pole piece 
In { HEAD ~ a preferred embodiment } , { TAIL ~ the pole piece } is smaller than the substrate such that the signal contacts and part of the ground are not covered by the pole piece
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH