Patent ID: 8659311

Claim:
A test apparatus for testing a plurality of devices under test formed on a semiconductor wafer, comprising: a probe card that includes, on a connection surface to be overlapped on the semiconductor wafer, a plurality of bumps to be connected to respective device pads of the plurality of devices under test, the probe card further including, on a rear surface of the connection surface, a plurality of contact pads respectively corresponding to the plurality of bumps; a test head that includes pin electronics, to which an electric circuit required for each test is mounted, and a contactor that includes a contactor housing for holding a spring pin connected to the pin electronics and a three-dimensional actuator for supporting the contactor housing, the test head causing the spring pin to be sequentially connected to each part of the plurality of contact pads by moving the contactor housing with a horizontal movement and a vertical extension and contraction of the three-dimensional actuator; a tilting portion that is provided on one of the probe card and the contactor and inclines with respect to a surface of the probe card; a roller that is provided on the other of the probe card and the contactor and contacts the tilting portion; and an operation bar that presses the probe card and the contactor to each other by causing the tilting portion and the roller to move relatively to each other in a direction parallel to the probe card, wherein the test head tests the plurality of devices under test on the semiconductor wafer using the pin electronics connected to the contactor that is pressed to each part of the plurality of contact pads.