Patent ID: 8253433
Filing Date: 2012-08-28
Classification: G01R

Abstract:
1. An apparatus for testing an integrated circuit, comprising: a chip unit provided with a chip support and a plurality of electronic parts arranged on the upside of said chip support; a probe unit distanced downward from said chip unit, the probe unit including a probe support and a plurality of contacts arranged on the underside of the probe support; a connection unit disposed between said chip unit and said probe unit so as to electrically connect them and including a pin support as well as a plurality of connection pins supported on said pin support so as to penetrate said pin support in an up-down direction; and a coupling unit coupling separably said chip unit, said probe unit and said connection unit and displacing at least either said chip unit or said probe unit and said connection unit in a direction to approach each other and to be away from each other relative to said connection unit; wherein coupling unit is provided with: a thrust bearing apparatus disposed in the one of said chip unit and said probe unit as well as in said pin support and coupling them displaceably in a direction to approach each other and to be away from each other, said bearing apparatus extending about an imaginary axis which extends in an up-down direction through said pin support and said probe support; a rotary ring disposed between said pin support and said bearing apparatus angularly rotatably about said imaginary axis; and a displacing mechanism for displacing said rotary ring about said imaginary axis and displacing the one of said chip unit and said probe unit and said pin support in a direction to approach each other and to be away from each other.