{TAIL ~ A developed photoresist layer} 59 is used to define {HEAD ~ the opposing lateral margins} of the implant 
{ TAIL ~ A developed photoresist layer } 59 is used to define { HEAD ~ the opposing lateral margins } of the implant
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH