Device and method of detecting defective electronic component

A method of detecting whether a plurality of electronic components have one or more defective electronic components, the method comprising:

• an energy transfer operation of transferring heat energy due to a photothermal effect generated by a heat source to the plurality of electronic components in a non-contact manner to cause the plurality of electronic components which are spaced apart from each other to vibrate simultaneously;
• a mechanical resonance detecting operation of detecting vibration resonances of the plurality of electronic components simultaneously;
• and
• a defective product determining operation of comparing the detected vibration resonances of the plurality of electronic components with a reference vibration resonance of a normal product through a post-processing processor to simultaneously determine whether the plurality of electronic components have one or more defective electronic components and then extracting determined information,
• wherein the heat energy is transmitted to the plurality of electronic components in the non-contact manner through air.