means for applying compressive forces to the IC chip, the insulating board and the circuit board, to force the connector elements into {HEAD ~ contact} with {TAIL ~ the IC chip contact areas} and the circuit board face contact areas 
with
means for applying compressive forces to the IC chip , the insulating board and the circuit board , to force the connector elements into { HEAD ~ contact } with { TAIL ~ the IC chip contact areas } and the circuit board face contact areas
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH