{TAIL ~ These interconnect materials} include doped polysilicon, {HEAD ~ polycides}, and tungsten metal 
{ TAIL ~ These interconnect materials } include doped polysilicon , { HEAD ~ polycides } , and tungsten metal
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH