Patent ID: 11915902
Assignee: NUFLARE TECHNOLOGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 1:
2. The conduction inspection method for the multipole aberration corrector according to claim 1, wherein,
in the upper-stage substrate, a plurality of first openings including the first opening are formed and the shield electrode is disposed around the plurality of first openings,
in the middle-stage substrate, a plurality of second openings including the second opening are formed, the plurality of control electrodes being opposite each other across the second opening are disposed for each second opening of the plurality of second openings, and a plurality of wirings individually connected to one of the plurality of control electrodes which are different from each other are arranged for each second opening of the plurality of second openings,
in the lower-stage substrate, a plurality of third openings including the third opening are formed and the shield electrode is arranged around the plurality of the third openings, and
the conduction inspection method for the multipole aberration corrector individually determines, with respect to the multipole aberration corrector which individually corrects aberration of multiple charged particle beams, to be corrected, passing through the plurality of first openings, the plurality of second openings, and the plurality of third openings by individually variably applying a potential to each of the plurality of control electrodes at the each second opening, whether there is, at the each control electrode of the plurality of control electrodes at the each second opening, conduction between the control electrode concerned and the wiring connected to the control electrode concerned.