wherein {HEAD ~ a portion} of the second interlayer dielectric film is sandwiched between {TAIL ~ the second metal patterns} and the first metal patterns 
is sandwiched between
wherein { HEAD ~ a portion } of the second interlayer dielectric film is sandwiched between { TAIL ~ the second metal patterns } and the first metal patterns
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH