{HEAD ~ The monocrystalline semiconductor material} of the substrate 10 may contain {TAIL ~ a definite defect concentration} and still be considered single crystal 
contain
{ HEAD ~ The monocrystalline semiconductor material } of the substrate 10 may contain { TAIL ~ a definite defect concentration } and still be considered single crystal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH