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89 条记录 (耗时 0.043 秒)

    LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND SMOOTH SIDEWALL
    5.
    发明申请
    LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND SMOOTH SIDEWALL 审中-公开
    激光切割和等离子体蚀刻用于高切割强度和平滑面

    公开(公告)号：US20150011073A1

    公开(公告)日：2015-01-08

    申请号：US14293227

    申请日：2014-06-02

    申请人： Wei-Sheng Lei ,  Tong Liu ,  Madhava Rao Yalamanchili ,  Brad Eaton ,  Aparna Iyer ,  Ajay Kumar

    发明人： Wei-Sheng Lei ,  Tong Liu ,  Madhava Rao Yalamanchili ,  Brad Eaton ,  Aparna Iyer ,  Ajay Kumar

    IPC分类号： H01L21/78 ,  H01L21/3065 ,  H01L21/67 ,  H01L21/308

    CPC分类号： H01L21/78 ,  H01L21/3065 ,  H01L21/3086 ,  H01L21/67207

    摘要： In embodiments, a hybrid wafer or substrate dicing process involving an initial laser scribe and subsequent plasma etch is implemented for die singulation. The laser scribe process may be used to cleanly remove a mask layer, organic and inorganic dielectric layers, and device layers. The laser etch process may then be terminated upon exposure of, or partial etch of, the wafer or substrate. In embodiments, a hybrid plasma etching approach is employed to dice the wafers where an isotropic etch is employed to improve the die sidewall following an anisotropic etch with a plasma based on a combination of NF3 and CF4. The isotropic etch removes anisotropic etch byproducts, roughness, and/or scalloping from the anisotropically etched die sidewalls after die singulation.

    摘要翻译： 在实施例中，实施涉及初始激光划片和随后的等离子体蚀刻的混合晶片或衬底切割工艺用于裸片切割。 激光划片工艺可用于清洁地去除掩模层，有机和无机介电层以及器件层。 然后可以在曝光或部分蚀刻晶片或衬底时终止激光蚀刻工艺。 在实施例中，使用混合等离子体蚀刻方法来对晶片进行骰子，其中采用各向同性蚀刻来改善基于NF 3和CF 4的组合的等离子体的各向异性蚀刻之后的管芯侧壁。 各向同性蚀刻在单片切割之后从各向异性蚀刻的模具侧壁去除各向异性蚀刻副产物，粗糙度和/或扇贝。

    Computed tomography method and apparatus for centre-of-rotation determination
    6.
    发明授权
    Computed tomography method and apparatus for centre-of-rotation determination 有权
    用于旋转中心测定的计算机断层扫描方法和装置

    公开(公告)号：US08259897B2

    公开(公告)日：2012-09-04

    申请号：US12989170

    申请日：2008-04-25

    申请人： Tong Liu

    发明人： Tong Liu

    IPC分类号： A61B6/00 ,  G01D18/00

    CPC分类号： G06T11/005 ,  A61B6/032 ,  A61B6/583 ,  A61B6/587

    摘要： A method and apparatus is disclosed for determining the central ray of scanning an object on a detector in a computer tomography system. The method comprises producing a fan beam of x-rays at a fixed x-ray source and detecting the x-rays at the detector. The scanning projection data of the object under examination is received and the object is rotated under examination using a manipulator. After calculating the opposite projection pixel position and projection angle for each pixel, a mismatching is measured between the grey levels of all pixels and their calculated opposite projection pixels with a set of assumed central ray, and identifying the minimum of the measurement as the true central ray.

    摘要翻译： 公开了一种用于确定计算机断层摄影系统中检测器上的物体扫描的中心射线的方法和装置。 该方法包括在固定的x射线源处产生x射线的扇形束并检测检测器处的​​X射线。 接收检查对象的扫描投影数据，并使用机械手对物体进行检查。 在计算每个像素的相对投影像素位置和投影角度之后，在一组假设的中心射线之间测量所有像素的灰度级与其计算出的相反投影像素之间的失配，并将测量的最小值确定为真实中心 射线。

    Phase noise shaping using sigma delta modulation in a timing recovery unit
    7.
    发明授权
    Phase noise shaping using sigma delta modulation in a timing recovery unit 有权
    在定时恢复单元中使用Σ-Δ调制的相位噪声整形

    公开(公告)号：US08031783B1

    公开(公告)日：2011-10-04

    申请号：US12754511

    申请日：2010-04-05

    申请人： James L. Gorecki ,  Tong Liu

    发明人： James L. Gorecki ,  Tong Liu

    IPC分类号： H04B14/06 ,  H04L7/00 ,  H03M1/20

    CPC分类号： H04B14/062 ,  H03L7/0812 ,  H03L7/093 ,  H03M3/50 ,  H03M7/3026 ,  H04L7/0025 ,  H04L7/033

    摘要： A method and apparatus for converting a high precision digital word into a high precision analog value is disclosed. A sigma delta modulator applies a digital input signal to a dither signal to generate a combined signal for sampling. A digital-to-analog converter quantizes the combined signal. An analog filter provides a cutoff at a bandwidth of interest to remove out of band quantization noise and signals. An I transfer function and a Q transfer function can be coupled between the sigma delta modulator and the digital-to-analog converter for mapping of the combined signal. The apparatus can also include a phase interpolator for receiving the output signal and outputting a clock recovery phase.

    摘要翻译： 公开了一种用于将高精度数字字转换为高精度模拟值的方法和装置。 Σ-Δ调制器将数字输入信号施加到抖动信号以产生用于采样的组合信号。 数模转换器对组合信号进行量化。 模拟滤波器在感兴趣的带宽上提供截止以去除带外量化噪声和信号。 可以在Σ-Δ调制器和数 - 模转换器之间耦合I传递函数和Q传递函数，用于映射组合信号。 该装置还可以包括用于接收输出信号并输出​​时钟恢复阶段的相位插值器。

    Computed tomography system and method
    8.
    发明授权
    Computed tomography system and method 有权
    计算机断层扫描系统和方法

    公开(公告)号：US07912174B2

    公开(公告)日：2011-03-22

    申请号：US12089885

    申请日：2005-10-13

    申请人： Tong Liu

    发明人： Tong Liu

    IPC分类号： A61B6/03

    CPC分类号： G01N23/046 ,  A61B6/583 ,  G01N2223/419

    摘要： A computed tomography system having a fixed X-ray source [10] for producing a fan beam [20], a fixed digital detector [12] and a manipulator [14] for holding and rotating an object [16] to be inspected. Left and right projections of the rotated object on the fixed digital detector are used to determine a central ray, reconstruction of an image of the object being based on the central ray position. A corresponding method and apparatus are also disclosed.

    摘要翻译： 一种计算机断层摄影系统，具有用于产生风扇光束的固定X射线源[10]，固定数字检测器[12]和用于保持和旋转要检查的物体[16]的操纵器[14]。 旋转对象在固定数字检测器上的左右投影用于确定中心射线，基于中心射线位置重建物体的图像。 还公开了相应的方法和装置。

    Bandwidth constraint construction for overlapped logical channels
    9.
    发明授权
    Bandwidth constraint construction for overlapped logical channels 有权
    重叠逻辑信道的带宽约束构造

    公开(公告)号：US07769854B2

    公开(公告)日：2010-08-03

    申请号：US11943016

    申请日：2007-11-20

    申请人： Anlu Yan ,  Tong Liu

    发明人： Anlu Yan ,  Tong Liu

    IPC分类号： G06F15/173

    CPC分类号： H04L47/781 ,  H04L47/70 ,  H04L47/829

    摘要： A technique determines whether configured logical bandwidth allotments for logical channels are supported by maximum available physical bandwidths of physical channels assigned to those logical channels. The technique establishes a bandwidth-constraint directed acyclic graph (DAG) or “BCD” based on novel relationship rules between vertexes of the BCD that represent logical channels or unions of logical channels as well as the underlying physical channels and their maximum available bandwidth constraints. Once the BCD is established, the vertexes of the BCD may be traversed (e.g., from in-neighbor vertexes to out-neighbor vertexes) to determine whether their constraints are met.

    摘要翻译： 技术确定逻辑信道的配置逻辑带宽分配是否被分配给这些逻辑信道的物理信道的最大可用物理带宽支持。 该技术基于表示逻辑信道的逻辑信道或联合以及底层物理信道及其最大可用带宽约束的BCD顶点之间的新关系规则，建立了带宽约束有向非循环图（DAG）或“BCD”。 一旦BCD建立，BCD的顶点可以被遍历（例如，从邻近顶点到邻近顶点），以确定它们的约束是否被满足。

    Image dynamic range compression method, apparatus, and digital camera
    10.
    发明申请
    Image dynamic range compression method, apparatus, and digital camera 有权
    图像动态范围压缩方法，设备和数码相机

    公开(公告)号：US20090290040A1

    公开(公告)日：2009-11-26

    申请号：US12453501

    申请日：2009-05-13

    申请人： Cheng Du ,  Tong Liu ,  Gang Wang ,  Zhongchao Shi ,  Tao Li

    发明人： Cheng Du ,  Tong Liu ,  Gang Wang ,  Zhongchao Shi ,  Tao Li

    IPC分类号： H04N5/228 ,  G06K9/36

    CPC分类号： H04N5/243 ,  G06T5/009 ,  H04N5/20

    摘要： A method of compressing an original dynamic range of an original image, includes a first step of obtaining a reduced image corresponding to the original image by performing quantization and downsampling on the original image that has been input; a second step of calculating a look-up table based on the reduced image, wherein the look-up table indicates a mapping relationship between the original dynamic range of the original image and a dynamic range of a medium; and a third step of mapping each of the pixels in the original image from the original dynamic range of the original image onto the dynamic range of the medium based on the look-up table.

    摘要翻译： 一种压缩原始图像的原始动态范围的方法包括：通过对已经输入的原始图像进行量化和下采样来获得与原始图像相对应的缩小图像的第一步骤; 基于缩小图像计算查找表的第二步骤，其中查找表指示原始图像的原始动态范围与介质的动态范围之间的映射关系; 以及第三步骤，基于查找表将原始图像中的每个像素从原始图像的原始动态范围映射到介质的动态范围。