Device and method of detecting defect of electronic component

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

• an energy transfer operation of transferring energy generated by an energy source to the plurality of electronic components in a non-contact manner to cause the plurality of electronic components to vibrate;
• a mechanical resonance detecting operation of detecting vibration resonances of the plurality of electronic components;
• 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 determine whether the plurality of electronic components have one or more defective electronic components and then extracting determined information.