The center region 34 is the shared diffusion region of {HEAD ~ the cascode connected transistors} of {TAIL ~ the present invention} 
of
The center region 34 is the shared diffusion region of { HEAD ~ the cascode connected transistors } of { TAIL ~ the present invention }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL