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