A cascode {HEAD ~ I/O driver} is described that includes {TAIL ~ a barrier} formed in the shared region between the two transistors 
includes
A cascode { HEAD ~ I / O driver } is described that includes { TAIL ~ a barrier } formed in the shared region between the two transistors
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH