{TAIL ~ This invention} relates to scanning tunneling microscope tips, and {HEAD ~ methods} for making and using such tips 
{ TAIL ~ This invention } relates to scanning tunneling microscope tips , and { HEAD ~ methods } for making and using such tips
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH