A contact/container photo and etch creates {HEAD ~ a contact/container opening} to provide {TAIL ~ access} to the underlying active area either directly or through a conductive plug 
to provide
A contact / container photo and etch creates { HEAD ~ a contact / container opening } to provide { TAIL ~ access } to the underlying active area either directly or through a conductive plug
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH