BEAM MANIPULATOR IN CHARGED PARTICLE-BEAM APPARATUS

    公开(公告)号:US20240355575A1

    公开(公告)日:2024-10-24

    申请号:US18759499

    申请日:2024-06-28

    CPC classification number: H01J37/1472 H01J37/28

    Abstract: Disclosed herein is a manipulator or an array of manipulator. A manipulator manipulates a charged particle beam in a projection system. The manipulator comprising a substrate with major surfaces and a through-passage between associated apertures in the major surfaces. The through passage configured for passage of a path of a charged particle beam. An inner wall of the through-passage between the major surfaces comprises a plurality of electrodes configured to manipulate the charged particle beam. Each electrode comprises doped substrate. The through-passage comprises recesses that extend away from the path of the charged particle beam. Each recess defines a gap between the adjacent electrodes and further comprising an electrically insulating region between the adjacent electrodes. The recesses extend behind at least one of the adjacent electrodes relative to the path of the charged particle beam and comprising at least part of the electrically insulating region.

    CHARGED PARTICLE SYSTEM, APERTURE ARRAY, CHARGED PARTICLE TOOL AND METHOD OF OPERATING A CHARGED PARTICLE SYSTEM

    公开(公告)号:US20230223233A1

    公开(公告)日:2023-07-13

    申请号:US18117369

    申请日:2023-03-03

    CPC classification number: H01J37/3177 H01J37/28 H01J37/12

    Abstract: A charged particle system generates a charged particle multi beam along a multi beam path. The charged particle system comprises an aperture array, a beam limit array and a condenser lens. In the aperture array are an array of apertures to generate from an up-beam charged particle source charged particle paths down-beam of the aperture array. The beam-limit array is down-beam of the aperture array. Defined in the beam-limit array is an array of beam-limit apertures for shaping the charged particle multi beam path. The condenser lens system is between the aperture array and the beam-limit array. The condenser lens system selectively operates different of rotation settings that define different ranges of beam paths between the aperture array and the beam-limit array. At each rotation setting of the condenser lens system, each beam-limit aperture of the beam-limit array lies on a beam path down-beam of the aperture array.

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