Patent ID: 9601306
Date: 2017-03-21
CPC Classifications: G01L,H01J

Claim:
1. A charged particle device, comprising: a charged particle beam source for generating a charged particle beam; a charged particle optical system for controlling a path for the charged particle beam to propagate; a sample micromotion mechanism containing a sample holder to support a sample irradiated with the charged particle beam, the mechanism being configured to impart micromotion to the sample holder and position the sample; and a sensor unit for detecting the charged particle beam transmitted through the sample, wherein: the sample micromotion mechanism further includes a strain measuring unit to measure strain in a constituent member of the sample micromotion mechanism; and after positioning the sample, the sample micromotion mechanism imparts micromotion to the sample holder so as to counteract an amount of the strain in accordance with the amount of strain measured by the strain measuring unit.