Patent ID: 7057406

Claim:
An integrated type probe card comprising: a plurality of probes; a circuit space converter, said circuit space converter comprising multiple layers of circuits therein, and a plurality of first contacts and second contacts respectively arranged at two opposite sides of said multiple layers of circuits and electrically connected to the circuits, the density of said first contacts being higher than said second contacts, said first contacts being respectively connected to said probes for transmitting signal from said probes to said second contacts; a spring connector plate, said spring connector plate comprising a holder plate, said holder plate having a predetermined number of receiving holes extended through top and bottom sides thereof, and a plurality of metal spring members respectively mounted in the receiving holes of said holder plate, said metal spring members each having two distal ends respectively protruded over the top and bottom sides of said holder plate and having one of the respective two distal ends respectively electrically connected to said second contacts of said circuit space converter; a circuit board pressed on one of the two distal ends of each of said metal spring members against the second contacts of said circuit space converter, said circuit board having a plurality of circuits and contacts arranged on one side thereof and electrically connected to said metal spring members of said spring connector plate for testing electric signal transmitted from said probes; and a level adjustment mechanism adapted to hold said probes, said circuit space converter, said spring connector plate and said circuit board in order and to adjust the level status of said circuit space converter, for enabling said metal spring members to compensate elevational difference between said circuit space converter and said spring connector plate and to keep said circuit space converter electrically connected to said circuit board.