ACTUATOR ASSEMBLIES COMPRISING PIEZO ACTUATORS OR ELECTROSTRICTIVE ACTUATORS

    公开(公告)号:WO2020234045A1

    公开(公告)日:2020-11-26

    申请号:PCT/EP2020/063178

    申请日:2020-05-12

    Abstract: The invention relates to an actuator assembly comprising a first piezo actuator and a second piezo actuator. According to a first aspect the piezo actuator comprises a correction unit, configured to determine an output voltage difference representing a difference between a voltage at the output terminal of the first piezo actuator and a voltage at the output terminal of the second piezo actuator, and a first power correction for correcting the first power signal and/or a second power correction for correcting the second power signal, based on the output voltage difference. According to a second aspect a power unit, said power unit configured to generate a power signal for the first and second piezo actuator based on the set point, and to provide the power signal to the first terminal of the first piezo actuator and to the second terminal of the second piezo actuator.

    FRAME ASSEMBLY, LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD

    公开(公告)号:WO2019206595A1

    公开(公告)日:2019-10-31

    申请号:PCT/EP2019/058504

    申请日:2019-04-04

    Abstract: The invention provides a lithographic apparatus or frame assembly, comprising: - a first and a second pneumatic support, being arranged to control a position of a frame, each of said pneumatic supports accommodating a pressure chamber, - a frame position control system, comprising: - a first position sensor device, configured to generate measurement data relating to the position of the frame, - a first pressure controller, configured to control the pressure in the pressure chamber of the first pneumatic support on the basis of the measurement data generated by the first position sensor device, - a pressure differential sensor device, configured to generate data relating to the difference between the pressure in the pressure chambers of the first pneumatic support and the second pneumatic support, - a second pressure controller, configured to control the pressure in the pressure chamber of the second pneumatic support on the basis of the measurement data from the pressure differential sensor device.

    PNEUMATIC SUPPORT DEVICE AND LITHOGRAPHIC APPARATUS WITH PNEUMATIC SUPPORT DEVICE

    公开(公告)号:WO2019206517A1

    公开(公告)日:2019-10-31

    申请号:PCT/EP2019/056650

    申请日:2019-03-18

    Abstract: The invention provides a pneumatic support device for a lithographic apparatus and a lithographic apparatus with such support device. The support device comprises a gas spring. The gas spring comprises a suspending part, a suspended part, and a pressure chamber configured for supporting the suspended part relative to the suspending part. The support device further comprises an actuator configured for positioning the suspended part relative to the suspending part, an acceleration sensor configured for generating a first sensor signal representative for the acceleration of the suspending part, a pressure sensor configured for generating a second sensor signal representative for the pressure in the pressure chamber, and a control unit. The control unit is configured to: receive the first sensor signal, receive the second sensor signal, filter the first sensor signal in a low-pass filter, filter the second sensor signal in a high-pass filter, determine, based on the filtered first sensor signal and filtered second sensor signal, a force exerted by the suspending part on the suspended part, and generate, based on said force, a control signal for the actuator.

    LITHOGRAPHIC APPARATUS AND METHOD
    6.
    发明申请

    公开(公告)号:WO2019048198A1

    公开(公告)日:2019-03-14

    申请号:PCT/EP2018/072048

    申请日:2018-08-14

    Abstract: A lithographic apparatus comprising an illumination system for providing a beam of radiation, a support structure for supporting a patterning device, the patterning device serving to impart the radiation beam with a pattern in its cross-section, a substrate table for holding a substrate, a projection system for projecting the patterned radiation beam onto a target portion of the substrate, and a wavelength modulator configured to vary a wavelength of the radiation beam across the cross-section of the radiation beam.

    ACTUATOR SYSTEM AND LITHOGRAPHIC APPARATUS
    7.
    发明申请
    ACTUATOR SYSTEM AND LITHOGRAPHIC APPARATUS 审中-公开
    执行器系统和光刻设备

    公开(公告)号:WO2017144236A1

    公开(公告)日:2017-08-31

    申请号:PCT/EP2017/051877

    申请日:2017-01-30

    Abstract: An actuator system (AS) is configured to position an object (OJ), the actuator system comprises a piezo actuator (PA) comprising an actuator contact surface (ACS). The piezo actuator is configured to exert a force (F) via the actuator contact surface onto the object. The actuator system further comprises an optical position sensor (OPS) configured to measure a position of the actuator contact surface. The piezo actuator comprises a transparent piezo material. The optical position sensor is configured to transmit an optical beam (OB) through the transparent piezo material to the actuator contact surface. The transparent piezo material may be LJNB03. The optical position sensor may form an interferometer.

    Abstract translation: 致动器系统(AS)被配置为定位物体(OJ),致动器系统包括包括致动器接触表面(ACS)的压电致动器(PA)。 压电致动器构造成经由致动器接触表面施加力(F)到物体上。 致动器系统还包括配置成测量致动器接触表面的位置的光学位置传感器(OPS)。 压电致动器包括透明的压电材料。 该光学位置传感器被配置为通过透明压电材料将光束(OB)传输到致动器接触表面。 透明压电材料可以是LJNB03。 光学位置传感器可以形成干涉仪。

    LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD
    8.
    发明申请
    LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD 审中-公开
    LITHOGRAPHIC装置和装置制造方法

    公开(公告)号:WO2015062921A1

    公开(公告)日:2015-05-07

    申请号:PCT/EP2014/072590

    申请日:2014-10-22

    CPC classification number: G03F7/70775 G03F7/70766 G03F7/70833 G03F7/709

    Abstract: A lithographic apparatus (300) includes: a base frame (50); an illumination system (310) configured to condition a radiation beam and supported by the base frame; a support (320) constructed to support a patterning device (350), the patterning device being capable of imparting the radiation beam with a pattern in its cross- section to form a patterned radiation beam; a substrate table (100.2, 100.3) constructed to hold a substrate (110); a projection system (340) configured to project the patterned radiation beam onto a target portion of the substrate; a positioning device (100) configured to position the substrate table, the positioning device being supported by the base frame; a sensor (395) configured to sense a vibration caused by a torque exerted on the base frame and, an actuator configured to exert a force on the illumination system or the base frame, in response to the sensed vibration, in order to at least partly dampen the vibration.

    Abstract translation: 光刻设备(300)包括:基架(50); 照明系统(310),被配置为调节辐射束并由所述基架支撑; 构造成支撑图案形成装置(350)的支撑件(320),所述图案形成装置能够在其横截面中赋予辐射束图案以形成图案化的辐射束; 构造成保持衬底(110)的衬底台(100.2,100.3); 投影系统(340),被配置为将所述图案化的辐射束投影到所述基板的目标部分上; 定位装置(100),其被配置为定位所述基板台,所述定位装置由所述基架支撑; 传感器(395),其被配置为感测由施加在所述基座框架上的扭矩引起的振动;以及致动器,其被配置为响应于所感测到的振动而对所述照明系统或所述基座框架施加力,以便至少部分地 抑制振动。

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