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    • 43. 发明申请
    • LITHOGRAPHY PROCESS
    • LITHOGRAPHY过程
    • US20140017604A1
    • 2014-01-16
    • US13550036
    • 2012-07-16
    • Yung-Yao LeeYing Ying WangHeng-Hsin LiuChin-Hsiang Lin
    • Yung-Yao LeeYing Ying WangHeng-Hsin LiuChin-Hsiang Lin
    • G03F7/20
    • G03F7/70633
    • A process for use in lithography, such as photolithography for patterning a semiconductor wafer, is disclosed. The process includes receiving an incoming semiconductor wafer having various features and layers formed thereon. A unit-induced overlay (uniiOVL) correction is received and a deformation measurement is performed on the incoming semiconductor wafer in an overlay module. A deformation-induced overlay (defiOVL) correction is generated from the deformation measurement results by employing a predetermined algorithm on the deformation measurement results. The defiOVL and uniiOVL corrections are fed-forward to an exposure module and an exposure process is performed on the incoming semiconductor wafer.
    • 公开了一种用于光刻的方法,例如用于图案化半导体晶片的光刻技术。 该方法包括接收具有形成在其上的各种特征和层的输入半导体晶片。 接收单元引起的覆盖(uniOVL)校正,并且在覆盖模块中对输入的半导体晶片进行变形测量。 通过对变形测量结果采用预定的算法,从变形测量结果生成变形诱导的覆盖(defiOVL)校正。 defiVV和unioVL校正被反馈到曝光模块,并且对输入的半导体晶片进行曝光处理。
    • 45. 发明申请
    • NOVEL CLOSED LOOP CONTROL FOR RELIABILITY
    • 新的闭环控制可靠性
    • US20130226327A1
    • 2013-08-29
    • US13404676
    • 2012-02-24
    • Wen-Cheng YangChung-En KaoYou-Hua ChouMing-Chih TsaiChen-Chia ChiangBo-Hung LinChin-Hsiang Lin
    • Wen-Cheng YangChung-En KaoYou-Hua ChouMing-Chih TsaiChen-Chia ChiangBo-Hung LinChin-Hsiang Lin
    • G06F19/00G06F15/00
    • G05B9/03G05B23/0237G05B2219/37533G05B2219/45031
    • The present disclosure relates to semiconductor tool monitoring system having multiple sensors configured to concurrently and independently monitor processing conditions of a semiconductor manufacturing tool. In some embodiments, the disclosed tool monitoring system comprises a first sensor system configured to monitor one or more processing conditions of a semiconductor manufacturing tool and to generate a first monitoring response based thereupon. A redundant, second sensor system is configured to concurrently monitor the one or more processing conditions of the manufacturing tool and to generate a second monitoring response based thereupon. A comparison element is configured to compare the first and second monitoring responses, and if the responses deviate from one another (e.g., have a deviation greater than a threshold value) to generate a warning signal. By comparing the first and second monitoring responses, errors in the sensor systems can be detected in real time, thereby preventing yield loss.
    • 本公开涉及具有多个传感器的半导体工具监视系统,其被配置为同时且独立地监视半导体制造工具的处理条件。 在一些实施例中,所公开的工具监控系统包括被配置为监视半导体制造工具的一个或多个处理条件并基于此产生第一监视响应的第一传感器系统。 冗余的第二传感器系统被配置为同时监视制造工具的一个或多个处理条件并且基于此产生第二监视响应。 比较元件被配置为比较第一和第二监测响应,以及如果响应彼此偏离(例如,具有大于阈值的偏差)以产生警告信号。 通过比较第一和第二监测响应,可以实时检测传感器系统中的误差,从而防止产量损失。