Windows cut into {HEAD ~ the insulative and adhesive layers} on {TAIL ~ either the top} or bottom of the tape permit electrical connection to the metallic conductive layer 
on
Windows cut into { HEAD ~ the insulative and adhesive layers } on { TAIL ~ either the top } or bottom of the tape permit electrical connection to the metallic conductive layer
OTH OTH OTH HEAD HEAD HEAD 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 OTH OTH