{HEAD ~ A method} of manufacturing a spacer for a substrate having {TAIL ~ a gate structure} formed thereon 
{ HEAD ~ A method } of manufacturing a spacer for a substrate having { TAIL ~ a gate structure } formed thereon
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH