Integrated circuit system with automated best focus determination based on change in alignment due to predictable pattern degradation
    3.
    发明授权
    Integrated circuit system with automated best focus determination based on change in alignment due to predictable pattern degradation 有权
    集成电路系统,由于可预测的模式退化,基于由于对准变化而自动化的最佳焦点确定

    公开(公告)号:US06542221B1

    公开(公告)日:2003-04-01

    申请号:US09672531

    申请日:2000-09-28

    IPC分类号: G03B2752

    CPC分类号: G03F7/70641

    摘要: A method (40) of determining a best focus for an integrated circuit stepper (10). The method repeats various steps for a plurality of different focus levels. The repeated steps include forming a first element group (C1) on a wafer (30F1), where the first element group comprises one or more elements and each of the one or more elements in the first element group has a shape. The repeated steps further include defining a first reference point (CC1) for the first element group at a position relative to the shape of the one or more elements in the first element group. Similarly, the repeated steps include forming a second element group (C2) on the wafer, where the second group comprises one or more elements and each of the one or more elements in the second element group has a shape, and defining a second reference point (CC2) for the second element group at a position relative to the shape of the one or more elements in the second element group. Still another repeated step is measuring a distance between the first reference point and the second reference point such that a distance measurement is identified for each of the plurality of different focus levels. Finally, the method selects as the best focus a focus level from the plurality of different focus levels and corresponding to a selected one of the distance measurements.

    摘要翻译: 一种确定集成电路步进器(10)的最佳焦点的方法(40)。 该方法针对多个不同的焦点级别重复各种步骤。 重复的步骤包括在晶片(30F1)上形成第一元件组(C1),其中第一元件组包括一个或多个元件,并且第一元件组中的一个或多个元件中的每一个都具有形状。 重复的步骤还包括在相对于第一元素组中的一个或多个元素的形状的位置处定义第一元素组的第一参考点(CC1)。 类似地,重复的步骤包括在晶片上形成第二元件组(C2),其中第二组包括一个或多个元件,并且第二元件组中的一个或多个元件中的每一个都具有形状,并且限定第二参考点 (CC2),用于在相对于第二元素组中的一个或多个元素的形状的位置处的第二元素组。 另一重复步骤是测量第一参考点和第二参考点之间的距离,使得针对多个不同聚焦水平中的每一个标识距离测量。 最后,该方法从多个不同焦点级别中选择最佳聚焦焦点水平,并对应于所选距离测量中的一个。

    Smart interface for payload transfers in networking applications
    5.
    发明授权
    Smart interface for payload transfers in networking applications 有权
    网络应用中有效载荷传输的智能接口

    公开(公告)号:US06967920B2

    公开(公告)日:2005-11-22

    申请号:US09911338

    申请日:2001-07-23

    IPC分类号: H04J3/06 H04L12/56 H04J3/14

    CPC分类号: H04L12/5601 H04J3/0685

    摘要: An apparatus and method for improving data transfers between a network and a network device is provided. The apparatus comprising a data input, a programmable counter adapted to counting the number of data packets received, an interrupt generator for signaling a microprocessor upon a signal from said programmable counter, a data processing block for examining the contents of data packets for an end-of-packet flag, and an output.

    摘要翻译: 提供一种用于改善网络和网络设备之间的数据传输的装置和方法。 该装置包括一数据输入端,一可编程计数器,用于对接收到的数据分组数进行计数;一中断发生器,用于根据来自所述可编程计数器的信号发送微处理器;一数据处理模块,用于检查数据分组的内容, 分组标志和输出。