Patent ID: 8493083

Claim:
A test apparatus comprising: a position information acquiring section operable to acquire position information concerning a plurality of first terminals on a surface of a device under test and position information concerning a plurality of second terminals on a surface of a probe card used for testing the device under test; a control section operable to calculate a displacement amount between each first terminal and a corresponding second terminal, based on the position information concerning the first terminals and the position information concerning the second terminals acquired by the position information acquiring section, and relative positions of the device under test and the probe card such that a maximum displacement amount from among the calculated displacement amounts is less than a predetermined value; a first storage section operable to store, in association with each second terminal, the displacement amount corresponding to the relative positions determined by the control section; an aligning section operable to adjust the relative positions of the device under test and the probe card based on a signal from the control section; a test head operable to test the device under test electrically connected to the probe card; a second storage section operable to store results of the test in association with each second terminal; and an analyzing section operable to, when the test indicates that the device under test is defective, (i) judge there to be a problem in the device under test or the probe card when the displacement amount of a location of the defect is less than a predetermined value and (ii) judge there to be a problem in the connection between the device under test and the probe card when the displacement amount of the location of the defect is greater than the predetermined value.