This produces a CMOS device in {HEAD ~ the core region} that has {TAIL ~ high device density} and includes high speed CMOS devices the non core region 
has
This produces a CMOS device in { HEAD ~ the core region } that has { TAIL ~ high device density } and includes high speed CMOS devices the non core region
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH