A diameter of the plurality of {HEAD ~ contact pins} is configured to be sufficiently small for {TAIL ~ the plurality} of contact pins to pierce the respective solder bumps so that an electrical connection is established by the upper end of each of the plurality of solder bumps piercing an associated one of the solder bumps 
A diameter of the plurality of { HEAD ~ contact pins } is configured to be sufficiently small for { TAIL ~ the plurality } of contact pins to pierce the respective solder bumps so that an electrical connection is established by the upper end of each of the plurality of solder bumps piercing an associated one of the solder bumps
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH