Patent ID: 8009299

Claim:
Method of calibration of the beam position, in at least a first direction, of a corpuscular beam of a corpuscular beam device in a plane section, comprising: providing a calibration body having structures, wherein the structures have a structure period P S in the at least first direction within the plane section, and a position L intended for the measurement exists within each structure; generating at least one detection signal, at respective structures in the section of the calibration body comprising: deflecting the corpuscular beam with deflectors onto beam target positions L 1 having a beam target period P 1 , in the at least first direction, which is larger than half of the structure period P S of the structures; wherein the beam target positions having the beam target period are the desired measurement points; wherein a basic calibration D 1 is used for control of the deflectors; and wherein beam target deflections deviate, in the at least first direction, either in the beam target period P 1 from the structure period P S and/or in the beam target position L 1 from the positions L; detection of signals, which depend on the measurement location within each structure of the calibration body; and calculating a new calibration based on the generated detection signals.