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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Real-Time Compensation of Simultaneous Errors Induced by Optical Phase Difference and Substrate Motion in Scanning Beam Laser Interference Lithography System
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Real-Time Compensation of Simultaneous Errors Induced by Optical Phase Difference and Substrate Motion in Scanning Beam Laser Interference Lithography System

机译:扫描光束激光干涉光刻系统中光学相位差和基片运动引起的同时误差的实时补偿

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摘要

Recent advances in display electronics, and micro- and nanophotonics have prompted development of novel nanofabrication technologies that enable production of high-fidelity periodic patterns over a large-area substrate. Scanning beam laser interference lithography (SBLIL) is a high-speed manufacturing process of such high-precision nanogratings; however, the precision of the nanopatterns produced by the SBLIL is negatively affected by several factors, including mechanical and optical phase jitters. Previous studies have focused on pattern production, but little research has been conducted on the error correction. In this paper, we propose a design methodology for comprehensive and real-time control of substrate motion and optical path difference in SBLIL process. We derived equations that relate SBLIL error sources to control inputs, and implemented the control strategy through acousto optical modulation and piezo electric actuation. The develop scheme was applied to the SBLIL process, and validated by presenting improved nano-pattern uniformity.
机译:显示电子学以及微光子和纳米光子学的最新进展促进了新型纳米加工技术的发展,该技术能够在大面积基板上生产高保真周期性图案。扫描束激光干涉光刻(SBLIL)是这种高精度纳米光栅的高速制造工艺;但是,由SBLIL产生的纳米图案的精度受到多种因素的负面影响,包括机械和光学相位抖动。先前的研究集中在模式产生上,但是很少有关于纠错的研究。在本文中,我们提出了一种用于在SBLIL工艺中全面实时地控制基板运动和光程差的设计方法。我们推导了将SBLIL误差源与控制输入相关联的方程式,并通过声光调制和压电驱动实现了控制策略。该开发方案已应用于SBLIL工艺,并通过提出改进的纳米图案均匀性进行了验证。

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  • 来源
    《IEEE / ASME Transactions on Mechatronics》 |2018年第4期|1491-1500|共10页
  • 作者单位

    National Center for Optically-Assisted Mechanical System, School of Mechanical Engineering, Yonsei University, Seoul, South Korea;

    National Center for Optically-Assisted Mechanical System, School of Mechanical Engineering, Yonsei University, Seoul, South Korea;

    National Center for Optically-Assisted Mechanical System, Graduate School of Information Storage Device, Yonsei University, Seoul, South Korea;

    National Center for Optically-Assisted Mechanical System, School of Mechanical Engineering, Yonsei University, Seoul, South Korea;

    National Center for Optically-Assisted Mechanical System, School of Mechanical Engineering, Yonsei University, Seoul, South Korea;

    National Center for Optically-Assisted Mechanical System, School of Mechanical Engineering, Graduate School of Information Storage Device, Yonsei University, Seoul, South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Laser beams; Mirrors; Interference; Adaptive optics; Measurement by laser beam; Substrates; Real-time systems;

    机译:激光束;反射镜;干涉;自适应光学;通过激光束进行测量;基板;实时系统;

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