a substrate disposed inside a housing, {HEAD ~ the substrate} including {TAIL ~ a substrate surface} occupying the most surface area of any surface of the substrate 
including
a substrate disposed inside a housing , { HEAD ~ the substrate } including { TAIL ~ a substrate surface } occupying the most surface area of any surface of the substrate
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH