Patent ID: 7863564

Claim:
An electric charged particle beam microscope having an electric charged particle source for generating a first electric charged particle beam, a generator for generating a first electromagnetic field used to lead the first electric charged particle beam to a specimen, a specimen stage for setting position and angle of the specimen in relation to the first electric charged particle beam, a generator for generating a second electromagnetic field used to lead a second electric charged particle beam given off from the specimen to a detector adapted to detect the second electric charged particle beam, and an image former for forming an image indicative of a specimen structure on the basis of a detector output, said microscope comprising a specimen movement corrector including: a recording unit for recording the relation between a specimen rotation angle and a specimen movement amount; a display unit for displaying the relation between the specimen rotation angle and the specimen movement amount; a first control unit for determining an amount of specimen movement due to a specimen rotation and correcting it on the basis of the relation between the specimen rotation angle and the specimen movement amount; and a second control unit for determining a specimen movement amount from an image taken before the specimen rotation and an image taken after the correction and correcting it.