In {HEAD ~ one aspect}, such layer is utilized as {TAIL ~ a cell dielectric layer} in DRAM circuitry 
In { HEAD ~ one aspect } , such layer is utilized as { TAIL ~ a cell dielectric layer } in DRAM circuitry
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH