ELECTRON-OPTICAL DEVICE
    3.
    发明申请

    公开(公告)号:US20250095950A1

    公开(公告)日:2025-03-20

    申请号:US18967282

    申请日:2024-12-03

    Abstract: A charged particle-optical device for projecting a plurality of charged particle beams along respective beam paths towards a sample location, the charged particle-optical device comprising: a charged particle-optical assembly configured to manipulate the charged particle beams, the charged particle-optical assembly comprising a first charged particle-optical element comprising a plate having one or more apertures around a beam path of the charged particle beams; and an electrical connector configured to electrically connect the plate of the first charged particle-optical element to an electrical power source, wherein the electrical connector: comprises a shield configured to define a field free region substantially free of electric fields; and is configured to be electrically connectable to a flexible coupling configured to electrically connect the plate of the first charged particle-optical element to the electrical power source, the flexible coupling located within the field free region.

    APERTURE BODY, FLOOD COLUMN AND CHARGED PARTICLE TOOL

    公开(公告)号:US20230005699A1

    公开(公告)日:2023-01-05

    申请号:US17941897

    申请日:2022-09-09

    Abstract: Disclosed herein is an aperture body for passing a portion of a charged particle beam propagating along a beam path comprising an axis, the aperture body comprising: an up-beam facing surface; a chamber portion comprising an up-beam end, a down-beam end and an up-beam plate, wherein the up-beam plate extends radially inwards from the up-beam end and the up-beam plate is configured to define an entrance opening around the beam path; wherein: the up-beam facing surface extends radially inwards from the down-beam end; the up-beam facing surface comprises an aperture portion that is configured to define an opening around the beam path; and the opening defined by the aperture portion is smaller than the entrance opening.

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