a heat source generating heat energy due to a photothermal effect and transferring the generated thermal energy 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 detector detecting vibration resonances of the plurality of electronic components simultaneously; and

a post-processing processor comparing the detected vibration resonances of the plurality of electronic components with a reference vibration resonance of a normal product 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.