摘要:
In order to realize a multiple assembled easily with high accuracy, a multipole having assembly accuracy within 10 micrometer and within several seconds of angle is achieved by fixing multipole elements by being guided by grooves provided on an inner side of a cylindrical housing to form the multipole.
摘要:
In order to realize a multiple assembled easily with high accuracy, a multipole having assembly accuracy within 10 micrometer and within several seconds of angle is achieved by fixing multipole elements by being guided by grooves provided on an inner side of a cylindrical housing to form the multipole.
摘要:
Disclosed is an aberration measurement method of a charged particle beam device provided with an aberration corrector (4). The method is characterized by: when measuring aberration, (A) the number of pixels or the resolution is changed of a first image and a second image that are benchmarks when measuring field of view offset, and after determining the destination of movement resulting from a rough field of view offset, the number of pixels or the resolution of the first image and the second image are set to the same conditions, and the amount of field of view offset is measured precisely, or (B) a sample having lines in the horizontal direction and in the vertical direction is one-dimensionally scanned, and the amount of movement is measured from the signal position offset. As a result, in a charged particle beam device provided mounted with an aberration corrector, it becomes possible to provide a highly precise aberration measurement method that is not to the detriment of measurement time.
摘要:
In order to provide a multipole measurement apparatus that can easily obtain table data for an aberration corrector that corrects the aberrations in a charged particle beam apparatus, the multipole measurement apparatus, which is provided with an optical system (10), a space into which an aberration corrector (6) is to be inserted, and a position detector (7), measures the relationship between the incident position and angle of a primary charged particle beam on the aberration corrector (6) at a plurality of points, the irradiation position upon the position detector (7), and a multipole, in a state of having a multipole field excited and in a state of not having a multipole field excited, so as to extract multipole components contained in the measurement executed in the state of having the multipole field excited.