In one aspect, the invention pertains to a method of forming {HEAD ~ a layer} of material on {TAIL ~ a substrate} 
In one aspect , the invention pertains to a method of forming { HEAD ~ a layer } of material on { TAIL ~ a substrate }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL