Stage System and Metrology Tool
    2.
    发明申请

    公开(公告)号:US20180267410A1

    公开(公告)日:2018-09-20

    申请号:US15921124

    申请日:2018-03-14

    Abstract: Disclosed is a stage system and metrology apparatus comprising at least one such stage system. The stage system comprises a stage carrier for holding an object and a stage carrier positioning actuator for displacing the stage carrier. The stage system also comprises a balance mass to counteract a displacement of the stage carrier, and a balance mass positioning actuator for displacing the balance mass. A cable arrangement is connected to the stage carrier for the supply of at least power to said stage carrier. The stage system is operable to apply a compensatory feed-forward force to the balance mass which compensates for a cable arrangement force exerted by the cable arrangement.

    DUAL FOCUS SOLUTON FOR SEM METROLOGY TOOLS
    4.
    发明公开

    公开(公告)号:US20240071713A1

    公开(公告)日:2024-02-29

    申请号:US18270707

    申请日:2021-12-09

    CPC classification number: H01J37/20 H01J37/28 H01J2237/20235

    Abstract: There is provided a charged particle apparatus comprising: a particle beam generator, optics, a first and a second positioning device, both configured for positioning the substrate relative to the particle beam generator along its optical axis, and a controller configured for switching between a first operational mode and a second operational mode. The apparatus is configured, when operating in the first operational mode, for irradiating the substrate by the particle beam at a first landing energy of the particle beam and, when operating in the second operational mode, for irradiating the substrate at a second, different landing energy. When operating in the first operational mode, the second positioning device is configured to position the substrate relative to the particle beam generator at a first focus position of the particle beam and in the second operational mode, to position the substrate at a second, different focus position.

    VIBRATION DAMPING AND RESONANCE REDUCTION FOR ION PUMP

    公开(公告)号:US20230114067A1

    公开(公告)日:2023-04-13

    申请号:US17798061

    申请日:2021-02-04

    Abstract: Apparatuses and systems for damping vibration of a vacuum vessel mounted with a pump include a pump body and a damping element coupled to the pump body, wherein the pump body and the damping element form a mass-based damper, and wherein the pump body forms a mass component of the mass-based damper; and the damping element forms a damping component of the mass-based damper. The apparatuses and systems also include a pump body configured to be secured to a column of a charged-particle inspection apparatus, a sensor coupled to the pump body, an actuator coupled to the pump body, and a circuitry communicatively coupled to the sensor and the actuator for receiving motion data indicative of a vibration of the column; determining a damping based on the motion data; and actuate the actuator to react to the vibration of the column in accordance with the damping.

    METHOD AND SYSTEM OF REDUCING CHAMBER VIBRATION

    公开(公告)号:US20250014857A1

    公开(公告)日:2025-01-09

    申请号:US18709795

    申请日:2022-10-19

    Abstract: Systems, apparatuses, and methods for reducing vibration of a chamber may include obtaining predefined motion data associated with a transferring device stiffly coupled to a chamber; determining movement of the transferring device based on the predefined motion data before the transferring device moves; determining, based on the movement, a first force to be applied to the chamber caused by the movement; and causing a support device of the chamber to apply a second force to the chamber to counteract the first force when the transferring device moves.

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