Patent ID: 11869745
Assignee: HITACHI HIGH-TECH CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 0:
1. A charged particle beam device configured to irradiate a sample with a charged particle beam, the charged particle beam device comprising:
a charged particle source configured to irradiate the sample with primary charged particles;
a light source configured to emit light to be emitted to the sample;
a detector configured to detect secondary charged particles generated from the sample by irradiating the sample with the primary charged particles;
an image processing unit configured to generate an observation image of the sample by using the secondary charged particles detected by the detector; and
a light control unit configured to control one or more optical parameters each representing a physical property of the light, wherein
the one or more optical parameters comprises a polarization plane of the light, and
the light control unit causes the image processing unit to generate the observation image having a contrast corresponding to a changed polarization plane obtained by changing the polarization plane of the light.