Patent ID: 7477061

Claim:
A probe card, comprising: a circuit board having a plurality of pads and spring bores through the circuit board; a probe assembly having an electrical signal transform board and a plurality of probe, wherein the electrical signal transform board has a first electrical signal side and a second electrical signal side electrically connected to the first electrical signal side, and the probes are provided on the first electrical signal side and the pads of the circuit board are electrically connected to the second electrical signal side; and an elastic support assembly having a fixed plate, a locking plate and a plurality of springs, wherein the fixed plate is fixed to the first electrical signal side of the electrical signal transform board and the locking plate respectively, and the locking plate has a plurality of bores communicated with the spring bores respectively, and the springs are received in the spring bores of the circuit board to urge the electrical signal transform board for absorption of a height difference of the electrical signal transform board when the electrical signal transform board is inclined.