Patent ID: 8558554

Claim:
A device for forming a plurality of temporary mechanical and electrical connections between a device under test ( 1 ) having a plurality of terminals ( 2 , 502 ), comprising: a plurality of electrically conductive force contacts ( 72 , 552 ) extending toward a device under test ( 1 , 501 ) and being deflectable, each force contact ( 72 , 552 ) in the plurality being laterally arranged to correspond to one terminal ( 2 , 502 ); and a plurality of electrically conductive sense contacts ( 74 , 554 ), each sense contact ( 74 , 554 ) in the plurality being laterally arranged to correspond to one force contact ( 72 , 552 ) and one terminal ( 2 , 502 ), each sense contact ( 74 , 554 ) in the plurality extending toward the device under test ( 1 , 501 ) proximate the corresponding force contact ( 72 , 552 ); wherein each sense contact ( 74 , 554 ) in the plurality includes a freely movable portion ( 76 , 554 ) extending resiliently toward device under test ( 1 , 501 ) wherein the sense contact is laterally separated from the corresponding force contact ( 72 , 552 ); and wherein the free portion includes a forked portion ( 78 , 554 a,b,c,d ) at its distal end that extends on opposite sides of a distal end of the corresponding force contact ( 72 , 552 ).