Finally, logic causes control apparatus to include and not include respective ones of the materials within {TAIL ~ the beam} in a pre established pattern of time periods which will cause the materials to be deposited on the steps in {HEAD ~ a series} of stacked monolayers 
Finally , logic causes control apparatus to include and not include respective ones of the materials within { TAIL ~ the beam } in a pre established pattern of time periods which will cause the materials to be deposited on the steps in { HEAD ~ a series } of stacked monolayers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH