An anode region of the first conductivity type is formed adjacent the second gate structure in {HEAD ~ a portion} of {TAIL ~ the source/base region} 
An anode region of the first conductivity type is formed adjacent the second gate structure in { HEAD ~ a portion } of { TAIL ~ the source / base region }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL