The semiconductor material is of {TAIL ~ a first conductivity type} and in {HEAD ~ electrical communication} with one or more of the one or more reference electrodes 
The semiconductor material is of { TAIL ~ a first conductivity type } and in { HEAD ~ electrical communication } with one or more of the one or more reference electrodes
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH