Apparatus and method for removing optical abberation during optical inspection
    41.
    发明专利
    Apparatus and method for removing optical abberation during optical inspection 有权
    光学检测期间取消光学检测的装置和方法

    公开(公告)号:JP2011154039A

    公开(公告)日:2011-08-11

    申请号:JP2011083897

    申请日:2011-04-05

    CPC classification number: G01M11/0264 G01N21/95607

    Abstract: PROBLEM TO BE SOLVED: To provide a method for altering the phase and/or amplitude of an optical beam within an inspection system using one or more spatial light modulators (SLMs). SOLUTION: An apparatus 100 for optically inspecting a sample includes a beam generator 102 for directing an incident optical beam 115 onto a sample 116. An output beam 125 is directed from the sample toward a detector 126 via an optical image forming systems 120 and 124. The apparatus further includes a programmable spatial light modulator (SLM) positioned within an optical path of either the output beam or the incident beam. The SLM includes a first SLM along with an irradiation aperture 108 and a second SLM along with a field aperture 112, and is configured to adjust a phase or amplitude profile of the incident beam or the output beam. The SLM is configured to alter an illumination profile of the incident beam to achieve different inspection modes. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于使用一个或多个空间光调制器(SLM)来改变检查系统内的光束的相位和/或幅度的方法。 解决方案:用于光学检查样本的装置100包括用于将入射光束115引导到样本116上的光束发生器102.输出光束125经由光学成像系统120从样本指向检测器126 该装置还包括位于输出光束或入射光束的光路内的可编程空间光调制器(SLM)。 SLM包括第一SLM以及照射孔108和第二SLM以及场孔112,并且被配置为调整入射光束或输出光束的相位或幅度分布。 SLM被配置为改变入射光束的照明轮廓以实现不同的检查模式。 版权所有(C)2011,JPO&INPIT

    Method and apparatus for determining surface layer thickness using continuous multi-wavelength surface scanning
    42.
    发明专利
    Method and apparatus for determining surface layer thickness using continuous multi-wavelength surface scanning 审中-公开
    使用连续多波长表面扫描法确定表面层厚度的方法和装置

    公开(公告)号:JP2011059123A

    公开(公告)日:2011-03-24

    申请号:JP2010230862

    申请日:2010-10-13

    Inventor: SHORTT DAVID W

    CPC classification number: G01B11/0633

    Abstract: PROBLEM TO BE SOLVED: To provide an inspection tool including illumination elements for directing light beams at different wavelengths, or at different angles of incidence, or by a combination thereof.
    SOLUTION: A beam creates reflected light and scattered light optical signals. Scanning elements and optical detector elements are provided. The optical detector elements receive reflected light signals and scattered light signals. A circuit for receiving the reflected light signals and the scattered light signals is used, the value of thickness for a partially transmissive layer formed on a workpiece is determined, and the effect of the thickness of the partially transmissive layer is corrected, so that signals identify and characterize the defects of the workpiece. Further, the present invention also includes descriptions of methods for achieving such inspections.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种检查工具,其包括用于引导不同波长或不同入射角的光束的照明元件或其组合。 解决方案:光束产生反射光和散射光的光信号。 提供扫描元件和光学检测器元件。 光检测器元件接收反射光信号和散射光信号。 使用用于接收反射光信号和散射光信号的电路,确定在工件上形成的部分透射层的厚度值,并且校正部分透射层的厚度的影响,使得信号识别 并表征工件的缺陷。 此外,本发明还包括用于实现这种检查的方法的描述。 版权所有(C)2011,JPO&INPIT

    System and method for inspecting semiconductor wafers
    44.
    发明专利
    System and method for inspecting semiconductor wafers 有权
    用于检查半导体波形的系统和方法

    公开(公告)号:JP2010249833A

    公开(公告)日:2010-11-04

    申请号:JP2010131351

    申请日:2010-06-08

    Abstract: PROBLEM TO BE SOLVED: To enable high-speed inspection of semiconductor wafers. SOLUTION: A plurality of independent, low cost, optical-inspection subsystems 30 are packaged and integrated to simultaneously perform parallel inspections of portions of the wafer 20. The wafer location relative to the inspection is controlled so that the entire wafer is imaged by the system of optical subsystems in a raster-scan mode. A monochromatic coherent-light source illuminates the wafer surface. A darkfield-optical system collects scattered light and filters patterns produced by valid periodic wafer structures using Fourier filtering. The filtered light is processed by general purpose digital-signal processors. Image subtraction methods are used to detect wafer defects, which are reported to a main computer 50 to aid in statistical process control, particularly for manufacturing equipment. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:为了能够高速检查半导体晶片。 解决方案:多个独立的,低成本的光学检查子系统30被封装和集成,以同时对晶片20的部分进行并行检查。控制相对于检查的晶片位置,使得整个晶片被成像 通过光学子系统的系统以光栅扫描模式。 单色相干光源照亮晶片表面。 暗场光学系统收集散射光,并使用傅立叶滤波对由有效的周期性晶片结构产生的滤波图案进行滤波。 滤波后的光由通用数字信号处理器处理。 图像减法方法用于检测晶片缺陷,其报告给主计算机50,以帮助统计过程控制,特别是用于制造设备。 版权所有(C)2011,JPO&INPIT

    Real time analysis of periodic structure on semiconductor
    49.
    发明专利
    Real time analysis of periodic structure on semiconductor 有权
    半导体周期结构的实时分析

    公开(公告)号:JP2014095719A

    公开(公告)日:2014-05-22

    申请号:JP2013267269

    申请日:2013-12-25

    Abstract: PROBLEM TO BE SOLVED: To analyze characteristics of a periodic structure formed on a sample on a real time basis.SOLUTION: A spectroscopic measurement module is used which generates output signals as a function of wavelength. The output signals create a theoretical initial model having a rectangular structure, by a processor. Next, the processor calculates a theoretical optical response of the sample to broad band radiation. The calculation result of the optical response is compared with values measured and normalized at a plurality of wavelengths. Based on the comparison, the model configuration is modified so as to be closer to an actual measured structure. The processor re-calculates the optical response of the modified model and compares the calculation result with normalized data. This process is repeated in an iterative manner until the optimal rectangular shape is achieved. Thereafter, the complexity of the model is iteratively increased by dividing the model into layers having widths and heights. Data is optimized in an iterative manner until the optimal model is obtained which is similar in structure to the periodic structure.

    Abstract translation: 要解决的问题:实时分析样品上形成的周期性结构的特性。解决方案:使用一个生成与波长有关的输出信号的光谱测量模块。 输出信号由处理器产生具有矩形结构的理论初始模型。 接下来,处理器计算样品对宽带辐射的理论光学响应。 将光学响应的​​计算结果与在多个波长处测量和归一化的值进行比较。 根据比较,模型配置被修改为更接近于实际的测量结构。 处理器重新计算修改模型的光学响应,并将计算结果与归一化数据进行比较。 以迭代的方式重复该过程,直到达到最佳矩形形状。 此后,通过将模型分成具有宽度和高度的层,迭代地增加了模型的复杂性。 数据以迭代方式进行优化,直到获得与结构相似的周期结构相似的最优模型。

    Systems and methods for creating inspection recipes
    50.
    发明专利
    Systems and methods for creating inspection recipes 有权
    用于创建检验录像的系统和方法

    公开(公告)号:JP2014003327A

    公开(公告)日:2014-01-09

    申请号:JP2013183229

    申请日:2013-09-04

    CPC classification number: G03F7/7065 G03F7/70525

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methods for creating inspection recipes.SOLUTION: A computer-implemented method for creating an inspection recipe includes acquiring a first design and one or more characteristics of output of an inspection system for a wafer on which the first design is printed using a manufacturing process. The method further includes creating an inspection recipe for a second design using the first design and the one or more characteristics of the output acquired for the wafer on which the first design is printed. The first and the second designs are different. The inspection recipe is used for inspecting wafers after the second design is printed on the wafers using the manufacturing process.

    Abstract translation: 要解决的问题:提供用于创建检查配方的系统和方法。解决方案:用于创建检查配方的计算机实现的方法包括获取用于晶片的检查系统的输出的第一设计和一个或多个特性,其中第一 设计使用制造工艺印刷。 该方法还包括使用第一设计和为印刷第一设计的晶片获取的输出的一个或多个特性来创建用于第二设计的检查配方。 第一和第二种设计是不同的。 在使用制造工艺将第二设计印刷在晶片上之后,检查配方用于检查晶片。

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