TESTING APPARATUS AND ACQUIRING METHOD OF TESTING CONDITION

摘要

The objective of the present invention is to reduce a gap between the results of a user′s environment and a tester′s environment. A determining unit (20) determines whether a DUT (1) passes or fails. A power source circuit (10) has variable characteristics and supplies a power signal to the DUT (1). A condition setting unit (40) executes a pilot test prior to performing a main test on the DUT (1) and obtains a testing condition in the main test. The condtion setting unit (40) can perform the following functions of: (a) measuring the characteristic of a first device on each of a plurality of pilot samples of the DUT (1) while the characteristic of the power source circuit (10) is close to a power characteristic of a user environment actually used by the DUT (1); (b) measuring the predetermined characteristics of a second device on each pilot sample while the characteristic of the power source circuit (10) is close to a power characteristic of a tester environment where the main test is executed; and (c) measuring a testing condition based on the first device characteristic and the second device characteristic. [Reference numerals] (10) Power source circuit; (40) Condition setting unit