For example, the wafer has been processed to form various line patterns that combine to form various gate structures of {HEAD ~ devices}, such as gate structures of {TAIL ~ transistors} 
For example , the wafer has been processed to form various line patterns that combine to form various gate structures of { HEAD ~ devices } , such as gate structures of { TAIL ~ transistors }
OTH 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 OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL