Any of the carbon layer adhering to the silicon layer is easily removable to provide {HEAD ~ the silicon layer} separate from {TAIL ~ the substrate} 
separate from
Any of the carbon layer adhering to the silicon layer is easily removable to provide { HEAD ~ the silicon layer } separate from { TAIL ~ the substrate }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL