Patent ID: 8278965
Filing Date: 2012-10-02
Classification: G01R

Abstract:
1. An inspection apparatus, comprising: a probe device having a contact for contacting with an electrode of an inspected object and having a built-in heater for correcting dislocation of the contact to the electrode caused by temperature difference between the probe device and the inspected object; a tester for testing the probe device and supplying electric power to the heater; an electric power supply system, provided on the tester, for supplying electric power to the heater; a temperature control unit for controlling electric power to the heater of the probe device, through the electric power supply system; at least one open/close switch for switching on and off electric power to the heater; and a continuity-checking device which checks ability to supply electric power to the heater from the electric power supply system, wherein the continuity-checking device includes: two parallel checking cables; connecting points provided at an end of the checking cables and detachably contacted at two points connected to the same end of the heater; a continuity-checking circuit, which is connected to two checking cables, for checking continuity between the checking cables contacted at the connecting points; and directional switches for switching and connecting the two checking cables to the continuity-checking circuit or the electric power supply system.