A first semiconductor region of {TAIL ~ the first conductivity type} is disposed on the semiconductor material and in {HEAD ~ electrical communication} with at least one of the one or more reference electrodes 
A first semiconductor region of { TAIL ~ the first conductivity type } is disposed on the semiconductor material and in { HEAD ~ electrical communication } with at least one of the one or more reference electrodes
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH