The solid heat conducting layer is a planar surface in {HEAD ~ contact} with {TAIL ~ the electronic device} 
with
The solid heat conducting layer is a planar surface in { HEAD ~ contact } with { TAIL ~ the electronic device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL