Therefore, even if the conductive film 9 does not exist, electron can be emitted from tip 6 by applying {HEAD ~ appropriate voltage} between {TAIL ~ the substrates} 1 and 7 
between
Therefore , even if the conductive film 9 does not exist , electron can be emitted from tip 6 by applying { HEAD ~ appropriate voltage } between { TAIL ~ the substrates } 1 and 7
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH