Patent ID: 6160407
Filing Date: 2000-12-12
Classification: G01R

Abstract:
An inspection apparatus of a semiconductor device comprising:infrared beam irradiation means for irradiating infrared beam onto a region of a semiconductor device from either a back surface or a front surface of a chip;variation inspection means for detecting a variation in a voltage appearing between predetermined terminals of the semiconductor device or a variation of a current flowing through a certain terminal of the semiconductor device by measurement of one of: the variation in voltage at said predetermined terminals and the variation in current at said certain terminal, said variation being caused by irradiating the infrared beam;inspection means for inspecting a failure device in the region based on an inspection result by the variation inspection means; andwherein said infrared beam irradiation means operably outputs the infrared beam having a wavelength of more than 1.24 .mu.m.