PIEZOELECTRIC ACTUATOR, ACTUATOR SYSTEM, SUBSTRATE SUPPORT, AND LITHOGRAPHIC APPARATUS INCLUDING THE ACTUATOR

    公开(公告)号:US20210318624A1

    公开(公告)日:2021-10-14

    申请号:US17267708

    申请日:2019-07-15

    Abstract: The invention provides a substrate support arranged to support a substrate, comprising piezo a actuator, further comprising a first pair of electrodes, a second pair of electrodes and a piezo material having a first surface and a second surface. The first surface is arranged along a first direction and second direction. The first pair of electrodes comprises a first electrode arranged on the first surface and a second electrode arranged on the second surface. The second pair of electrodes is arranged to shear the piezo material. The first pair of electrodes is arranged to elongate the piezo material in a third direction perpendicular to the first direction and second direction. The first electrode is divided into at least two parts and is arranged to rotate the first surface and the second surface relatively to each other about the first direction wherein the piezo actuator is arranged to support the substrate.

    THERMO-MECHANICAL ACTUATOR
    3.
    发明申请

    公开(公告)号:US20220236651A1

    公开(公告)日:2022-07-28

    申请号:US17629202

    申请日:2020-06-30

    Abstract: Disclosed is a thermo-mechanical actuator (100) comprising a piezo¬electric module (110), the piezo-electric module comprising at least one piezo-electric element (120), wherein the thermo-mechanical actuator is configured to: receive a thermal actuation signal (132) for controlling a thermal behaviour of the piezo-electric module, or provide a thermal sensing signal (132) representative of a thermal state of the piezo-electric module, and, wherein the thermo-mechanical actuator is configured to: receive a mechanical actuation (134) signal for controlling a mechanical behaviour of the piezo-electric module, or provide a mechanical sensing signal (134) representative of a mechanical state of the piezo-electric module.

    THERMO-MECHANICAL ACTUATOR
    5.
    发明申请

    公开(公告)号:US20240402621A1

    公开(公告)日:2024-12-05

    申请号:US18803195

    申请日:2024-08-13

    Abstract: Disclosed is a thermo-mechanical actuator comprising a piezo-electric module, the piezo-electric module comprising at least one piezo-electric element, wherein the thermo-mechanical actuator is configured to receive a thermal actuation signal for controlling a thermal behaviour of the piezo-electric module, or provide a thermal sensing signal representative of a thermal state of the piezo-electric module. The thermo-mechanical actuator is configured to receive a mechanical actuation signal for controlling a mechanical behaviour of the piezo-electric module, or provide a mechanical sensing signal representative of a mechanical state of the piezo-electric module. And wherein the thermal actuation signal is configured to create a heat flux within the piezo-electric module and wherein the mechanical actuation signal is configured to deform the piezo-electric module.

    ACTUATOR ASSEMBLIES COMPRISING PIEZO ACTUATORS OR ELECTROSTRICTIVE ACTUATORS

    公开(公告)号:US20220326627A1

    公开(公告)日:2022-10-13

    申请号:US17608760

    申请日:2020-05-12

    Abstract: An actuator assembly including a first piezo actuator and a second piezo actuator. The piezo actuator has 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.

    ELECTRONIC SYSTEM, ACCELEROMETER, CALIBRATION METHOD, LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD

    公开(公告)号:US20220113636A1

    公开(公告)日:2022-04-14

    申请号:US17428223

    申请日:2020-01-03

    Abstract: The invention relates to an electronic system for an accelerometer having a piezoelectric element and a first mechanical resonance frequency, comprising: a) a damping circuit configured to: —receive an acceleration signal from the piezoelectric element; —electronically dampen an amplitude of the first mechanical resonance frequency; and—generate a damped acceleration signal, b) an extender configured to: —receive the damped acceleration signal; —extend the frequency response; and—output an extended damped acceleration signal, wherein the extender is configured to have a first electronic anti-resonance frequency matching the damped first mechanical resonance frequency, and to have a frequency response between the first electronic anti-resonance frequency and a higher second frequency that is substantially opposite to a corresponding frequency response of the combination of the accelerometer and the damping circuit.

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