Patent ID: 9234934
Filing Date: 2016-01-12
CPC Classification: G01N,G01R,H02S,Y02E

Claim Text:
1. An inspecting device for inspecting a photo device comprising: an irradiation part for irradiating said photo device with pulsed light; a detection part having a detector for detecting an electric field intensity of an electromagnetic wave pulse depending on irradiation with probe light emitted from a light source for said pulsed light; a delay part for changing a time difference between a time that said electromagnetic wave pulse arrives at said detector and a time that said probe light arrives at said detector, thereby delaying a timing for detecting said electromagnetic wave pulse through said detector; a temporal waveform restoration part for restoring a temporal waveform of said electromagnetic wave pulse based on said electric field intensity of said electromagnetic wave pulse detected by said detector in said plurality of pieces of detection timing; an electromagnetic wave pulse analysis part for detecting a negative peak of said electric field intensity in said temporal waveform, and a setting part for setting a detection timing for detecting said electromagnetic wave pulse radiated from said photo device through said detector, based on the detection timing for detecting said negative peak in said temporal waveform.