Preferably the substrate body is formed of silicon, the substrate body face is highly polished, the base coating is substantially pinhole free and scratch free, and {TAIL ~ the carbon layer} is of {HEAD ~ uniform thickness} 
Preferably the substrate body is formed of silicon , the substrate body face is highly polished , the base coating is substantially pinhole free and scratch free , and { TAIL ~ the carbon layer } is of { HEAD ~ uniform thickness }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD