removing {TAIL ~ a part} of an amorphous silicon film formed on a substrate having an insulating surface to form a region for introducing metal elements that promote {HEAD ~ crystallization} of silicon 
removing { TAIL ~ a part } of an amorphous silicon film formed on a substrate having an insulating surface to form a region for introducing metal elements that promote { HEAD ~ crystallization } of silicon
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH 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 OTH OTH