Patent ID: 6734687
Filing Date: 2004-05-11
Classification: G01R

Abstract:
An apparatus for inspecting defects of devices including: a sample chamber; a movable sample stage for holding a device sample inside the sample chamber; a focused ion beam generator for irradiating a focused ion beam having a deflection range on the sample held on the sample stage; a charged particle detector for detecting secondary charged particles generated from the sample by irradiation of the focused ion beam; an image display unit for displaying an observation image A in which detected intensity of the secondary charged particles is converted into luminance signals; and a plurality of conductor probes, to which voltage is applied, for contacting with the sample and conductor probe movement mechanisms for moving the conductor probes,wherein the plurality of conductor probes comprises: a conductor probe that moves within the deflection range of the ion beam and is fixed relative to the focused ion beam generator; and a conductor probe that moves in synchronization with the sample stage and is fixed relative to the sample stage.