Patent ID: 7075326

Claim:
An LSI testing apparatus for testing an electronic device, comprising: a power source unit for supplying a source voltage of direct current to said electronic device; a detecting unit for detecting a source current with which said electronic device is supplied by said power source unit; and a judging unit for judging quality of said electronic device; and an electromagnetic wave generating unit for generating an electromagnetic wave with a predetermined frequency, wherein said power source unit comprises means for overlaying an overlaid signal with a predetermined period on said source voltage, and said judging unit judges said quality of said electronic device on the basis of said source current detected by said detecting unit in case said electronic device is supplied with said source voltage on which said overlaid signal is overlaid, and wherein said judging unit judges said quality of said electronic device on the basis of said source current detected by said detecting unit under a condition, where said electromagnetic wave generated by said electromagnetic wave generating unit is provided to said electronic device.