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    • 1. 发明授权
    • Capacitive measurement method and system for nanoimprint process monitoring
    • 纳米压印过程监测的电容测量方法和系统
    • US07682552B2
    • 2010-03-23
    • US10851113
    • 2004-05-24
    • Chin-Chung NienTa-Chuan LiuHong Hocheng
    • Chin-Chung NienTa-Chuan LiuHong Hocheng
    • G01B11/00
    • G03F7/0002B81C1/0046B81C99/0065B81C2201/0153B82Y10/00B82Y40/00
    • The present invention relates to a capacitive measurement method and system for a nanoimprint process, which arranges a plurality of electrode plates on both the backside of the master mold and the surface of the supporting base carrying the wafer substrate to form a plurality of capacitive structures. By monitoring the capacitance variation signal caused by the continuous variations in the thickness and the material properties of the resist during the imprint process, the status of the resist can be monitored and recorded, which is used as the references for determining the timing to demold in the nanoimprint process and for maintaining the flatness of the resist. Accordingly, the nanoimprint process can be automated easier and the quality and the throughput of of the nanometer scaled imprint product can be improved.
    • 本发明涉及一种用于纳米压印工艺的电容测量方法和系统,其在主模的背面和承载晶片衬底的支撑基体的表面上布置多个电极板以形成多个电容结构。 通过监测由压印过程中厚度的连续变化和抗蚀剂的材料特性引起的电容变化信号,可以监测和记录抗蚀剂的状态,作为确定脱模时间的参考 纳米压印工艺和用于保持抗蚀剂的平整度。 因此,纳米压印工艺可以更容易自动化,并且能够提高纳米压印产品的质量和生产量。
    • 3. 发明授权
    • Nano-imprint system with mold deformation detector and method of monitoring the same
    • 具有模具变形检测器的纳米压印系统及其监控方法
    • US07303703B2
    • 2007-12-04
    • US10791926
    • 2004-03-02
    • Hong HochengChin Chung Nien
    • Hong HochengChin Chung Nien
    • B29C43/58B29C45/76
    • B29C37/005B29C43/003B29C43/021B29C43/58B29C2043/025B29C2043/5825B29C2059/023B82Y10/00B82Y40/00G03F7/0002Y10S977/887
    • A system for nano-imprint with mold deformation detector is disclosed for real-time monitoring of the deformation of the mold. An electrostatic plate capacitor is embedded in the mold, serving as the deformation detector. The capacitor includes two opposite metal film electrodes formed by silicon micromachining technique on opposite surfaces of the mold and connected by a metal lead. During imprinting, the mold is acted upon by an external force and deformation occurs, which induces change of distance between the metal film electrodes and thus variation of the capacitance of the capacitor. The amount of deformation of the mold can then be assessed by comparing the capacitance with a reference. Thus, real-time detection and monitoring of the deformation of the nano-imprint mold is realized. Also disclosed is a method for carrying out the real-time monitoring of the deformation of the mold.
    • 公开了一种用于模具变形检测器的纳米压印系统,用于实时监测模具的变形。 静电板电容器嵌入模具中,用作变形检测器。 该电容器包括通过硅微加工技术在模具的相对表面上形成并通过金属引线连接的两个相对的金属膜电极。 在压印期间,模具被外力作用,发生变形,这引起金属膜电极之间的距离变化,从而导致电容器的电容变化。 然后可以通过将电容与参考值进行比较来评估模具的变形量。 因此,实现了纳米压印模具变形的实时检测和监测。 还公开了一种用于对模具变形进行实时监测的方法。