The planes of {TAIL ~ the channel layer} made of {HEAD ~ this crystalline oxide semiconductor} are crystal planes on which only metal atoms are arranged 
The planes of { TAIL ~ the channel layer } made of { HEAD ~ this crystalline oxide semiconductor } are crystal planes on which only metal atoms are arranged
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH