Patent ID: 11961699
Assignee: HITACHI HIGH-TECH CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A charged particle beam device comprising:
a charged particle beam source configured to generate a charged particle beam;
a sample stage;
an objective lens configured to focus charged particle beams on a sample;
an electric field generation unit configured to apply an accelerating electric field to secondary electrons generated from the sample, the secondary electrons being distributed between the sample and the objective lens;
a detector that is mounted on a charged particle beam source side with respect to the objective lens and is capable of separately detecting secondary electrons emitted in azimuth angle ranges of two or more different azimuths for the same observation region; and
an image processing unit configured to perform synthesis by performing shading correction and contrast adjustment on an image obtained by detecting a first emission azimuth by the detector and an image obtained by detecting a second emission azimuth by the detector.