As seen in FIG 12B, first portion 130 of P well 112 may be between {HEAD ~ first source region} 125 and buried oxide layer 109 and second portion 132 of {TAIL ~ P well} 112 may be between second source region 127 and buried oxide layer 109 
As seen in FIG 12B , first portion 130 of P well 112 may be between { HEAD ~ first source region } 125 and buried oxide layer 109 and second portion 132 of { TAIL ~ P well } 112 may be between second source region 127 and buried oxide layer 109
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH