Patent ID: 7852102

Claim:
A method of inspecting a semiconductor device, comprising: an irradiation step of irradiating a pulse laser beam to any diffusion region in a semiconductor device as an inspection target, the semiconductor device being held in an non-bias state and including diffusion regions; a detection and conversion step of detecting an electromagnetic wave radiated from a laser beam irradiated position of the semiconductor device, and converting the detected electromagnetic wave into a time-varying voltage signal corresponding to a time waveform of an electric field amplitude of the electromagnetic wave; and a defect diagnosis step of detecting electric field distribution within the semiconductor device from the time-varying voltage signal to perform a defect diagnosis, the method further comprising: comparing a first time waveform of the electric field amplitude of the electromagnetic wave generated when irradiating the pulse laser beam to the diffusion region for correcting detection sensitivity of the electromagnetic wave which is provided in the semiconductor device as an inspection target and connected to at least one wiring line with a second time waveform of the electric field amplitude of the electromagnetic wave generated when irradiating the pulse laser beam to the diffusion region for correcting which is provided in a semiconductor device as a reference device; correcting detection sensitivity of the electromagnetic wave so that a maximum value of the amplitude magnitude of the electromagnetic wave for the first time waveform is equal to a maximum value of the amplitude magnitude of the electromagnetic wave for the second time waveform; and inspecting the semiconductor device as an inspection target.