Patent ID: 9384941
Filing Date: 2016-07-05
CPC Classification: H01J

Claim Text:
1. A charged particle beam apparatus comprising: an electron beam column configured to irradiate a sample with an electron beam; an ion beam column, which is disposed substantially perpendicular to the electron beam column, and which is configured to irradiate the sample with an ion beam to perform an etching process; a detector configured to detect a charged particles generated from the sample; an image forming unit configured to form a charged particle image by using detection signals from the detector; a first sample stage, which is configured to hold the sample, and which is movable to be tilted; a second sample stage, which has a sample holder configured to hold a sample piece cut off from the sample, which is movable to be tilted, and which is configured to move the sample holder in a direction substantially perpendicular to an irradiation axis of the electron beam to an irradiated area of the electron beam; and a probe that is rotatable about an axis while holding the sample piece.