Patent ID: 7772554

Claim:
A charged particle system, comprising: charged particle beam controlling means that controls a charged particle beam to scan a predetermined region of a sample with the charged particle beam; charged particle applying means capable of irradiating said sample with said charged particle beam in an inclined direction; observation image generating means that detects an electron emitted from a part of said sample irradiated with said charged particle beam when said sample is irradiated with the charged particle beam and generates an observation image of the region of said sample scanned with said charged particle beam based on the amount of electrons detected; and image processing means that displays said observation image and an ideal pattern image on a display section, said image processing means calculates an angle of display of said ideal pattern based on an inclination angle of said charged particle beam with respect to said sample, inclination-converts the shape of the ideal pattern, and displays the inclination-converted ideal pattern as a three-dimensional pattern on said display section.