The IC socket is provided with a contact unit including a plurality of straight contact pins each having an lower end connected to {HEAD ~ the test board} and an upper end connected to the solder bumps and also including an elastic member for supporting the plurality of {TAIL ~ contact pins} 
The IC socket is provided with a contact unit including a plurality of straight contact pins each having an lower end connected to { HEAD ~ the test board } and an upper end connected to the solder bumps and also including an elastic member for supporting the plurality of { TAIL ~ contact pins }
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 HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL