LENS DESIGNS
    1.
    发明申请

    公开(公告)号:US20220406563A1

    公开(公告)日:2022-12-22

    申请号:US17897080

    申请日:2022-08-26

    摘要: Disclosed herein is an multi-array lens configured in use to focus a plurality of beamlets of charged particles along a multi-beam path, wherein each lens in the array comprises: an entrance electrode; a focusing electrode and a support. The focusing electrode is down beam of the entrance electrode along a beamlet path and is configured to be at a potential different from the entrance electrode. The support is configured to support the focusing electrode relative to the entrance electrode. The focusing electrode and support are configured so that in operation the lens generates a rotationally symmetrical field around the beamlet path.