The contact springs 20 provide a flexible conductive contact between the pads 18 of the silicon chip package 10 and {HEAD ~ the corresponding pads} on {TAIL ~ the printed circuit board} 
The contact springs 20 provide a flexible conductive contact between the pads 18 of the silicon chip package 10 and { HEAD ~ the corresponding pads } on { TAIL ~ the printed circuit board }
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 HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL