a plurality of conductive connector elements disposed in selected ones of the openings in {HEAD ~ the insulating board} to make {TAIL ~ electrical contact} between the IC chip contact areas and the circuit board face contact areas; and 
a plurality of conductive connector elements disposed in selected ones of the openings in { HEAD ~ the insulating board } to make { TAIL ~ electrical contact } between the IC chip contact areas and the circuit board face contact areas ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH