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An ultra-precision XY&thetas;Z piezo-micropositioner. I.Design and analysis

机译:超精密XYθZ压电微型定位器。一,设计与分析

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摘要

A novel three degree-of-freedom micropositioner was developed forndeep ultraviolet lithography applications. The design of thenmicropositioner utilizes the monolithic flexural mechanism with built-innmultilayer piezoelectric actuators and sensors to achieve translationsnin the X- and Y-axes and rotation in the ΘZ-axis. Thencompact design aims at high resolution, high stiffness, and extremelynlow crosstalk interference. Parametric analyses of harmonic and forcednvibrations are conducted to solve the derived dynamic models for thennear optimum geometry of the micropositioner. Furthermore, the errornbudget analysis is conducted to minimize the effects of the geometricntolerance, material variation, and hysteresis errors
机译:一种新型的三自由度微型定位器被开发用于深紫外光刻应用。微型定位器的设计利用内置的多层压电致动器和传感器的整体挠曲机构来实现X轴和Y轴的平移以及ΘZ轴的旋转。紧凑的设计旨在实现高分辨率,高刚度和极低的串扰干扰。进行了谐波和强迫振动的参数分析,以解决微定位器近乎最佳几何形状的动力学模型。此外,进行误差预算分析以最小化几何公差,材料变化和磁滞误差的影响

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