Microvia inspection system
    2.
    发明授权
    Microvia inspection system 失效
    微观检查系统

    公开(公告)号:US06697154B2

    公开(公告)日:2004-02-24

    申请号:US09986961

    申请日:2001-11-13

    IPC分类号: G01N2188

    摘要: A system has a projection lens directing on-axis light and low level LEDs directing light to blind microvias. A high resolution camera captures blind microvia images and an image processor recognizes defects according to classifications according to reflected light area and centroid position. The lens is telecentric for particularly effective image capture in blind microvias. The system also has an array of 6000 back lighting LEDs providing illumination for capture of images by a camera. These images are analyzed by the image processor to detect defects such as blocked through microvias.

    摘要翻译: 系统具有引导轴上光的投影透镜和将光导向盲微孔的低级LED。 高分辨率摄像机捕获盲微视觉图像,并且图像处理器根据反射光区域和重心位置根据分类识别缺陷。 透镜是远心的,用于在盲孔中进行特别有效的图像捕获。 该系统还具有6000个背光照明LED阵列,为照相机拍摄图像提供照明。 这些图像由图像处理器分析以检测诸如通过微孔阻塞的缺陷。

    Machine vision
    3.
    发明授权
    Machine vision 失效
    机器视觉

    公开(公告)号:US06983066B2

    公开(公告)日:2006-01-03

    申请号:US10120382

    申请日:2002-04-12

    IPC分类号: G06K9/00

    摘要: An illumination head (1) for machine vision has an annular support (2) with first, second, third, and fourth illumination sections (3, 4, 5, and 6). The third section (5) has three sets of LEDs (12, 13, 14) arranged in a pattern so that each set illuminates at approximately the same angle. Each set is driven in succession so that a series of three monochrome images at the same angle are captured. These are superimposed by an image processor to provide a color image, although the camera is monochrome. More information can be obtained in such a color image and the high resolution and robustness of monochrome cameras is availed of.

    摘要翻译: 用于机器视觉的照明头(1)具有带有第一,第二,第三和第四照明部分(3,4,5和6)的环形支撑件(2)。 第三部分(5)具有三组LED(12,13,14),它们以一种图案排列,使得每组LED以大致相同的角度照亮。 每组被连续驱动,从而捕获相同角度的一系列三个单色图像。 这些是由图像处理器叠加以提供彩色图像,尽管相机是单色的。 可以在这样的彩色图像中获得更多的信息,并且利用单色相机的高分辨率和鲁棒性。

    Measurement system having a camera with a lens and a separate sensor
    4.
    发明授权
    Measurement system having a camera with a lens and a separate sensor 失效
    测量系统具有带镜头的照相机和单独的传感器

    公开(公告)号:US06671397B1

    公开(公告)日:2003-12-30

    申请号:US09471385

    申请日:1999-12-23

    IPC分类号: G06K900

    CPC分类号: G01N21/95684

    摘要: A measurement system (1) has a camera with a lens (12) and a separate sensor (10) mounted so that their planes (13,11) intersect at an object plane (3) according to the Scheimpflug principle. A reference camera(4) is normal and provides a 2D normal image which is used by an image processor (25) to determine a calibration image. This allows the image processor to determine height of the object (2). A single image capture provides an image of the full object, such as a ball grid array (BGA).

    摘要翻译: 测量系统(1)具有安装透镜(12)和独立传感器(10)的照相机,以便它们的平面(13,11)根据Scheimpflug原理在物平面(3)处相交。 参考相机(4)是正常的并且提供2D图像,其由图像处理器(25)用于确定校准图像。 这允许图像处理器确定对象的高度(2)。 单个图像捕获提供了完整对象的图像,例如球栅阵列(BGA)。

    Material inspection
    5.
    发明授权
    Material inspection 失效
    物料检验

    公开(公告)号:US06697151B2

    公开(公告)日:2004-02-24

    申请号:US09970163

    申请日:2001-10-02

    IPC分类号: G01N2188

    CPC分类号: B23K3/08

    摘要: An inspection station (6) has a ring of 370 nm LEDs (24) for low-angle diffuse illumination of flux. This stimulates inherent fluorescent emission of the flux without the need for flux additives or pre-treatment. A CCD sensor (20) detects the emission. An image processor generates output data indicating flux volume according to a relationship between emission intensity and volume over the surface of the flux. Intensity non-uniformity indicates either height non-uniformity or hidden voids, both of which give rise to defects after application of solder paste and reflow. The inspection is particularly effective for pre solder application flux inspection.

    摘要翻译: 检查站(6)具有370nm的LED(24)的环,用于通量的低角度漫射照明。 这刺激了助焊剂的固有荧光发射,而不需要助焊剂添加剂或预处理。 CCD传感器(20)检测发射。 图像处理器根据发射强度和磁通表面上的体积之间的关系产生指示磁通量的输出数据。 强度不均匀性表示高度不均匀或隐藏的空隙,两者都在施加焊膏和回流之后引起缺陷。 检查对于预焊料应用通量检测特别有效。

    Increasing Die Strength by Etching During or After Dicing
    6.
    发明申请
    Increasing Die Strength by Etching During or After Dicing 审中-公开
    在切割期间或之后通过蚀刻增加模具强度

    公开(公告)号:US20090191690A1

    公开(公告)日:2009-07-30

    申请号:US11666796

    申请日:2005-11-01

    IPC分类号: H01L21/78 H01L21/306

    CPC分类号: H01L21/3065 H01L21/78

    摘要: A semiconductor wafer having an active layer is mounted on a carrier with the active layer away from the carrier and at least partially diced on the carrier from a major surface of the semiconductor wafer. The at least partially diced semiconductor wafer is etched on the carrier from the said major surface with a spontaneous etchant to remove sufficient semiconductor material from a die produced from the at least partially diced semiconductor wafer to improve flexural bend strength of the die by removing at least some defects caused by dicing.

    摘要翻译: 具有有源层的半导体晶片安装在载体上,活性层远离载体并且在载体上至少部分地从半导体晶片的主表面切割。 至少部分切割的半导体晶片在所述主表面上用自发蚀刻剂从载体上蚀刻,以从由至少部分切割的半导体晶片产生的模具中移除足够的半导体材料,以通过至少去除至少来提高模具的弯曲强度 一些由切割引起的缺陷。

    PROGRAM CONTROLLED DICING OF A SUBSTRATE USING A PULSED LASER BEAM
    10.
    发明申请
    PROGRAM CONTROLLED DICING OF A SUBSTRATE USING A PULSED LASER BEAM 审中-公开
    使用脉冲激光束对基板进行程序控制

    公开(公告)号:US20110029124A1

    公开(公告)日:2011-02-03

    申请号:US12856374

    申请日:2010-08-13

    IPC分类号: G05B19/02

    摘要: A substrate is diced using a program-controlled pulsed laser beam apparatus having an associated memory for storing a laser cutting strategy file. The file contains selected combinations of pulse rate Δt, pulse energy density E and pulse spatial overlap to machine a single layer or different types of material in different layers of the substrate while restricting damage to the layers and maximising machining rate to produce die having predetermined die strength and yield. The file also contains data relating to the number of scans necessary using a selected combination to cut through a corresponding layer. The substrate is diced using the selected combinations. Gas handling equipment for inert or active gas may be provided for preventing or inducing chemical reactions at the substrate prior to, during or after dicing.

    摘要翻译: 使用具有用于存储激光切割策略文件的相关联存储器的程序控制的脉冲激光束装置对基板进行切割。 该文件包含脉冲频率和Dgr; t,脉冲能量密度E和脉冲空间重叠的选择组合,以在衬底的不同层中加工单层或不同类型的材料,同时限制对层的损伤并最大化加工速率以产生具有 预定的模具强度和产量。 该文件还包含有关使用所选组合切割相应层所需的扫描数量的数据。 使用所选择的组合对基底进行切割。 可以提供用于惰性或活性气体的气体处理设备,用于在切割之前,期间或之后防止或引起基材上的化学反应。