{HEAD ~ The oxide layer} 22 has {TAIL ~ a thickness}, for example, in a range of 1000 angstroms to 8000 angstroms 
has
{ HEAD ~ The oxide layer } 22 has { TAIL ~ a thickness } , for example , in a range of 1000 angstroms to 8000 angstroms
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH