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116 条记录 (耗时 0.033 秒)

    Characterizing thermomechanical properties of an organic substrate using finite element analysis
    45.
    发明授权
    Characterizing thermomechanical properties of an organic substrate using finite element analysis 有权
    使用有限元分析表征有机基质的热机械性能

    公开(公告)号：US08345955B2

    公开(公告)日：2013-01-01

    申请号：US12260693

    申请日：2008-10-29

    申请人： Hien Phu Dang ,  Arun Sharma ,  Sri M. Sri-Jayantha

    发明人： Hien Phu Dang ,  Arun Sharma ,  Sri M. Sri-Jayantha

    IPC分类号： G06K9/00

    CPC分类号： G06F17/5018 ,  G06F2217/80

    摘要： A method for characterizing thermomechanical properties of an organic substrate is provided. The method includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the plurality of circuit layers of the substrate; selecting a given one of the plurality of circuit layers for processing; converting the image to a two-dimensional finite element model (FEM) image of the given one of the circuit layers; determining at least one of a coefficient of thermal expansion (CTE), modulus and Poisson's ratio of the FEM image of the given one of the circuit layers; repeating the steps of selecting a given one of the plurality of circuit layers, converting the image to a two-dimensional FEM image, and determining at least one of a CTE, modulus and Poisson's ratio of the FEM image for all of the plurality of circuit layers corresponding to at least a portion of the organic substrate; and constructing a three-dimensional representation of at least a portion of the organic substrate including the plurality of circuit layers as a function of at least one of the CTE, modulus and Poisson's ratio of each of the plurality of circuit layers.

    摘要翻译： 提供了表征有机基板的热机械性能的方法。 该方法包括以下步骤：接收有机衬底的图像，该图像包括衬底的多个电路层的几何描述; 选择所述多个电路层中的给定一个以进行处理; 将图像转换成给定的一个电路层的二维有限元模型（FEM）图像; 确定给定一个电路层的FEM图像的热膨胀系数（CTE），模数和泊松比中的至少一个; 重复选择多个电路层中的给定的一个电路层的步骤，将图像转换为二维有机图像，以及确定所有多个电路中的有限元图像的CTE，模数和泊松比中的至少一个 对应于有机基材的至少一部分的层; 以及构成包括所述多个电路层的所述有机衬底的至少一部分的三维表示作为所述多个电路层中的每一个的CTE，模数和泊松比中的至少一个的函数。

    Characterizing thermomechanical properties of an organic substrate using three-dimensional finite element analysis
    46.
    发明授权
    Characterizing thermomechanical properties of an organic substrate using three-dimensional finite element analysis 有权
    使用三维有限元分析来表征有机基质的热机械性质

    公开(公告)号：US08056027B2

    公开(公告)日：2011-11-08

    申请号：US12260718

    申请日：2008-10-29

    申请人： Hien Phu Dang ,  Vijaveshwar Das Khanna ,  Arun Sharma ,  Sri M. Sri-Jayantha

    发明人： Hien Phu Dang ,  Vijaveshwar Das Khanna ,  Arun Sharma ,  Sri M. Sri-Jayantha

    IPC分类号： G06F17/50 ,  G06K9/00

    CPC分类号： G06F17/5018 ,  G06F2217/80

    摘要： A method for characterizing thermomechanical properties of an organic substrate includes the steps of: receiving an image of the substrate, the image including a geometric description of the circuit layers of the substrate; selecting a given one of the circuit layers for processing; converting the image to a 2-D FEM image of the given circuit layer; repeating the steps of selecting a given one of the circuit layers and converting the image to a 2-D FEM image of the selected layer until all of the layers have been processed; combining all of the 2-D FEM images corresponding to the layers to form a 3-D FEM image representing at least a portion of the substrate; determining a coefficient of thermal expansion (CTE), modulus and/or Poisson's ratio of the 3-D FEM image; and constructing a 3-D representation of the substrate as a function of the CTE, modulus and/or Poisson's ratio of the 3-D FEM image.

    摘要翻译： 用于表征有机衬底的热机械性质的方法包括以下步骤：接收衬底的图像，该图像包括衬底的电路层的几何描述; 选择给定的一个电路层进行处理; 将图像转换成给定电路层的2-D FEM图像; 重复选择给定的一个电路层并将该图像转换成所选层的2-D FEM图像，直到所有层已经被处理的步骤; 组合对应于层的所有2-D FEM图像以形成表示基板的至少一部分的3-D FEM图像; 确定3-D FEM图像的热膨胀系数（CTE），模量和/或泊松比; 以及根据3-D FEM图像的CTE，模数和/或泊松比来构造衬底的3-D表示。

    Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter
    50.
    发明授权
    Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter 失效
    用于利用数字滤波器执行磁盘装置中的磁头致动器的定位控制的方法和系统

    公开(公告)号：US06567230B1

    公开(公告)日：2003-05-20

    申请号：US09429696

    申请日：1999-10-28

    申请人： Naoyuki Kagami ,  Akira Tokizono ,  Sri M. Sri-Jayantha ,  Tatsuya Sakai ,  Isao Yoneda ,  Hien Phu Dang ,  Arun Sharma

    发明人： Naoyuki Kagami ,  Akira Tokizono ,  Sri M. Sri-Jayantha ,  Tatsuya Sakai ,  Isao Yoneda ,  Hien Phu Dang ,  Arun Sharma

    IPC分类号： G11B2102

    CPC分类号： H03H17/0294 ,  G11B5/5521 ,  G11B5/56

    摘要： A method and system for utilizing a digital filter for actuator positioning control in a disk device. In accordance with the method and system of the present invention multiple selectable filter modules are provided. Each of the multiple selectable filter modules functions in a serial or parallel filtering mode when selected. Multiple configurable registers are also provided wherein the configuration of each of the multiple configurable registers determines a selection of at least one of the multiple selectable filter modules. Particular ones of the multiple configurable registers are selected, such that a configuration of the digital filter is dynamically selectable in order to achieve a predetermined filter output.

    摘要翻译： 一种利用数字滤波器在盘装置中执行器定位控制的方法和系统。 根据本发明的方法和系统，提供了多个可选择的过滤器模块。 多个可选滤波器模块中的每一个在选择时以串行或并行滤波模式运行。 还提供了多个可配置寄存器，其中多个可配置寄存器中的每一个的配置确定多个可选择滤波器模块中的至少一个的选择。 选择多个可配置寄存器中的特定的寄存器，使得可以动态地选择数字滤波器的配置以便实现预定的滤波器输出。