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