Patent ID: 8791413

Claim:
A charged particle beam device comprising: an ion beam optics column which irradiates a sample with an ion beam; an electron beam optics column which irradiates the sample with an electron beam; a first sample stage on which the sample is mounted and which is capable of planar movement and tilt movement; a detector which detects a signal generated from the sample; and a second sample stage on which the detector can be mounted, wherein, when the detector is mounted on the second sample stage, the second sample stage is capable of rotating within a plane that includes an optical axis of the electron beam optics column and an optical axis of the ion beam optics column, and that has a cross point at which the optical axis of the electron beam optics column and the optical axis of the ion beam optics column intersect as a center, so that the detector can tilt with respect to the first sample stage and the cross point, and a distance between the detector and the first sample stage or the cross point can be varied.