Chip dicing
    86.
    发明授权
    Chip dicing 失效
    芯片切片

    公开(公告)号:US06924210B1

    公开(公告)日:2005-08-02

    申请号:US10708487

    申请日:2004-03-06

    IPC分类号: B23K26/40 H01L21/46 H01L21/78

    摘要: A method and structure for cutting semiconductor chips from a wafer (dicing). For each chip of the wafer, a laser beam is used to cut around the chip along a plurality of straight-line cut segments such that the formed corners of the chip after cutting are all greater than 90°. As a result, the stress at these corners are much less than that of prior art chips, especially during packaging step. In one embodiment, the laser beam is used to cut along only straight-line cut segments not on any chip boundary line, and a saw blade is used to cut along all the chip boundary lines.

    摘要翻译: 一种从晶片切割半导体芯片的方法和结构(切割)。 对于晶片的每个芯片,使用激光束沿着多个直线切割段切割芯片,使得切割后的芯片的形成的角都大于90°。 结果,这些拐角处的应力比现有技术的芯片要小得多,特别是在包装步骤中。 在一个实施例中,激光束仅用于切割不在任何芯片边界线上的直线切割段,并且锯片用于沿着所有芯片边界线切割。

    System and method for automated fringe counting using image information
    89.
    发明授权
    System and method for automated fringe counting using image information 有权
    使用图像信息进行自动条纹计数的系统和方法

    公开(公告)号:US06856397B2

    公开(公告)日:2005-02-15

    申请号:US10004746

    申请日:2001-12-04

    摘要: A bulge testing system (10) for testing the material properties of a thin film window (14) using a Michelson interferometer (18) that generates an interference pattern (32) having fringes (34) and nodes (36) that move as the thin film window is inflated or deflated. The bulge testing system includes a fringe counting module (82), an analysis module (114) and an output module (88). The fringe counting module allows a user to interactively select from an image of the interference pattern one or more sampling regions (30) in which the user interface will count fringes. The analysis module allows a user to interactively change the location of maxima/minima indicators (116) in the event that noise in the image causes the analysis module to incorrectly determine the locations of the fringes and nodes. The output module automatically calculates material properties and provides test results to an output file and/or a results window (168).

    摘要翻译: 一种凸起测试系统(10),用于使用迈克尔逊干涉仪(18)测试薄膜窗口(14)的材料特性,所述迈克尔逊干涉仪产生具有边缘(34)和节点(36)的干涉图案(32),所述边缘(34)和节点(36) 电影窗口充气或放气。 凸起测试系统包括边缘计数模块(82),分析模块(114)和输出模块(88)。 条纹计数模块允许用户从干涉图案的图像交互地选择一个或多个采样区域(30),其中用户界面将计数边缘。 分析模块允许用户在图像中的噪声导致分析模块错误地确定条纹和节点的位置的情况下交互地改变最大/最小指示符(116)的位置。 输出模块自动计算材料属性并将测试结果提供给输出文件和/或结果窗口(168)。