中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

52 records (took 0.019 seconds)

    Semiconductor package and lead frame thereof
    42.
    发明授权
    Semiconductor package and lead frame thereof 有权
    半导体封装及其引线框架

    公开(公告)号：US08704345B2

    公开(公告)日：2014-04-22

    申请号：US13613309

    申请日：2012-09-13

    Applicant: Chih-Ming Kuo ,  Shih-Chieh Chang ,  Chih-Hsien Ni ,  Chin-Tang Hsieh ,  Chia-Jung Tu ,  Lung-Hua Ho

    Inventor： Chih-Ming Kuo ,  Shih-Chieh Chang ,  Chih-Hsien Ni ,  Chin-Tang Hsieh ,  Chia-Jung Tu ,  Lung-Hua Ho

    IPC: H01L23/495 ,  H01L23/48

    CPC classification number: H01L24/16 ,  H01L21/4828 ,  H01L23/3107 ,  H01L23/49548 ,  H01L23/49572 ,  H01L23/49582 ,  H01L2224/16245 ,  H01L2924/181 ,  H01L2924/00

    Abstract: A semiconductor package includes a lead frame, at least one chip and a molding compound. The lead frame comprises a plurality of leads, each lead comprises a first end portion and at least one coupling protrusion, wherein the first end portion comprises a first upper surface, the coupling protrusion comprises a ring surface and is integrally formed as one piece with the first upper surface. The chip disposed on top of the leads comprises a plurality of bumps and a plurality of solders, the coupling protrusions embed into the solders to make the ring surfaces of the coupling protrusions cladded with the solders. The solders cover the first upper surfaces. The chip and the leads are cladded with the molding compound.

    Abstract translation: 半导体封装包括引线框架，至少一个芯片和模塑料。 引线框架包括多个引线，每个引线包括第一端部部分和至少一个联接突出部分，其中第一端部部分包括第一上表面，联接突出部包括环形表面，并且一体地形成为与第 第一上表面。 设置在引线顶部的芯片包括多个凸块和多个焊料，耦合突起嵌入焊料中以使耦合突起的环表面被焊料包覆。 焊料覆盖第一个上表面。 芯片和引线用模塑料包覆。

    Power-mode-aware clock tree and synthesis method thereof
    47.
    发明授权
    Power-mode-aware clock tree and synthesis method thereof 有权
    功率模式感知时钟树及其合成方法

    公开(公告)号：US08179181B2

    公开(公告)日：2012-05-15

    申请号：US12750721

    申请日：2010-03-31

    Applicant: Chiao-Ling Lung ,  Shih-Chieh Chang

    Inventor： Chiao-Ling Lung ,  Shih-Chieh Chang

    IPC: H03H11/26

    CPC classification number: G06F17/505 ,  G06F2217/62

    Abstract: A power-mode-aware (PMA) clock tree and a synthesis method thereof are provided. The clock tree includes a sub clock tree and a PMA buffer. The sub clock tree transmits a delayed clock signal to a function module, wherein a power mode of the function module is determined according to a power information. The PMA buffer is coupled to the sub clock tree. The PMA buffer determines the delay time of a system clock signal according to the power information delays the system clock signal, and outputs the delayed system clock signal to the sub clock tree as the delayed clock signal.

    Abstract translation: 提供了功率模式感知（PMA）时钟树及其合成方法。 时钟树包括子时钟树和PMA缓冲区。 子时钟树将延迟的时钟信号发送到功能模块，其中根据功率信息确定功能模块的功率模式。 PMA缓冲器耦合到子时钟树。 PMA缓冲器根据功率信息确定系统时钟信号的延迟时间延迟系统时钟信号，并将延迟的系统时钟信号作为延迟的时钟信号输出到子时钟树。

    Method and apparatus for auto-tracking and compensating clock frequency
    48.
    发明授权
    Method and apparatus for auto-tracking and compensating clock frequency 有权
    用于自动跟踪和补偿时钟频率的方法和装置

    公开(公告)号：US07324619B2

    公开(公告)日：2008-01-29

    申请号：US10859104

    申请日：2004-06-03

    Applicant: Wen-Fu Tsai ,  Chien-Chih Lin ,  Shih-Chieh Chang

    Inventor： Wen-Fu Tsai ,  Chien-Chih Lin ,  Shih-Chieh Chang

    IPC: H04L7/00

    CPC classification number: H04L7/0331 ,  G06F1/12

    Abstract: A method and an apparatus for auto-tracking and compensating a clock frequency are disclosed. The method is suitable for being applied in USB controllers. The apparatus for receiving a data stream includes an oscillator, for generating a sampling clock; a clock extractor, for extracting a system clock according to the data stream and the sampling clock; a pattern extractor, coupled to the clock extractor to extract a plurality of patterns from the data stream according to the system clock; a counter coupled to the pattern extractor for counting the length of the data stream and generating a counting value, according to the sampling clock, in response to the patterns; an arithmetic logic unit (ALU), coupled to the counter and the pattern extractor for mapping a configuration according to the counting value and a reference value; and a register, coupled to the ALU and the oscillator to temporarily store the configuration and feedback the configuration to the ALU, so that the oscillator updates the frequency of the sampling clock in response to the configuration.

    Abstract translation: 公开了一种用于自动跟踪和补偿时钟频率的方法和装置。 该方法适用于USB控制器。 用于接收数据流的装置包括用于产生采样时钟的振荡器; 时钟提取器，用于根据数据流和采样时钟提取系统时钟; 模式提取器，耦合到时钟提取器，以根据系统时钟从数据流提取多个模式; 耦合到所述图案提取器的计数器，用于根据所述图案根据所述采样时钟计数所述数据流的长度并产生计数值; 耦合到计数器和图案提取器的算术逻辑单元（ALU），用于根据计数值和参考值映射配置; 以及寄存器，耦合到ALU和振荡器以临时存储配置并将配置反馈到ALU，使得振荡器响应于该配置来更新采样时钟的频率。

    Screwdriver with illumination
    50.
    发明申请
    Screwdriver with illumination 有权

    公开(公告)号：US20070008715A1

    公开(公告)日：2007-01-11

    申请号：US11174868

    申请日：2005-07-05

    Applicant: Shih-Chieh Chang ,  Juan-Hsin Lu

    Inventor： Shih-Chieh Chang ,  Juan-Hsin Lu

    IPC: B25B23/18

    CPC classification number: B25B23/18 ,  B25B15/02

    Abstract: A screwdriver includes a handle including a receptacle for coupling with an end of a bit. A front groove and a rear groove are respectively defined in a front end and a rear end of the handle. A plurality of light-emitting diodes are mounted on a circuit board in the front groove of the handle. A transparent cover is mounted in the front groove and in front of the light-emitting diodes. A front cap is mounted to the front end of the handle. A cell and a switch are mounted in the rear groove. A rear cap is mounted to the rear end of the handle. The switch, the cell, the circuit board, and the light-emitting diodes are electrically connected. The light-emitting diodes forwardly emit light beams passing through the transparent cover to provide illumination when required.

Patent Agency Ranking