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