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    • 3. 发明专利
    • Electric characteristics evaluation analysis system, equivalent circuit model extraction method, and program and recording medium for them
    • 电特性评估分析系统,等效电路模型提取方法及其程序和记录介质
    • JP2013171361A
    • 2013-09-02
    • JP2012033665
    • 2012-02-20
    • Elpida Memory Incエルピーダメモリ株式会社Hitachi Ltd株式会社日立製作所
    • IWAKURA KENKATAGIRI MITSUAKIHIROSE YUKITOSHIMORIYA TAKUYAUEMATSU YUTAKA
    • G06F17/50
    • PROBLEM TO BE SOLVED: To provide an electric characteristics evaluation analysis system capable of easily obtaining an equivalent circuit model that can perform simulation of a circuit including crosstalk noise between high-accuracy signal wirings in a semiconductor package that includes a fixed potential wiring and a plurality of signal wirings each of which is connected to a corresponding semiconductor chip connection terminal and external connection terminal.SOLUTION: An electric characteristics evaluation analysis system includes: a division position setting section and an equivalent circuit model extraction section. The division position setting section sets division positions for dividing a fixed potential wiring into: a plurality of part wirings that are dividedly wired in such a manner that each signal wire is sandwiched from both sides so as to shield each of the plurality of signal wires; a part that connects each of the part wirings to a corresponding semiconductor chip connection terminal; and a part that connects each of the part wirings to a corresponding external connection terminal. The equivalent circuit model extraction section extracts a lumped-constant equivalent circuit model, in which the fixed potential wiring has been divided at each division positions, by electromagnetic field analysis.
    • 要解决的问题:提供一种电特性评估分析系统,其能够容易地获得能够执行包括固定电位布线和多个固定电位布线的半导体封装中的高精度信号布线之间的包括串扰噪声的电路的模拟的等效电路模型 每个信号线连接到相应的半导体芯片连接端子和外部连接端子。解决方案:电气特性评估分析系统包括:分割位置设置部分和等效电路模型提取部分。 分割位置设定部将将固定电位配线分割的分割位置设定为:分割地布线的多个部分配线,使得每个信号线被夹在两侧以便屏蔽多个信号线中的每一个; 将部分布线与相应的半导体芯片连接端子连接的部分; 以及将每个部分布线连接到相应的外部连接端子的部分。 等效电路模型提取部分通过电磁场分析提取集中常数等效电路模型,其中固定电位线在每个分割位置被划分。
    • 4. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2012182784A
    • 2012-09-20
    • JP2011241620
    • 2011-11-02
    • Elpida Memory IncHitachi Ltdエルピーダメモリ株式会社株式会社日立製作所
    • KATAGIRI MITSUAKIIWAKURA KENUEMATSU YUTAKA
    • H03K5/01H03K19/0175H03K19/0944
    • H03K19/00361G11C7/02G11C11/4074G11C11/4076G11C11/4096Y10T307/50
    • PROBLEM TO BE SOLVED: To provide a semiconductor device which can reduce vibration noise of SSN (Simultaneous Switching Noise) of an output circuit.SOLUTION: A semiconductor device comprises a first and second power source lines, an output circuit 12 arranged between the first power source line VDDQ and the second power source line VSSQ, and a noise cancellation circuit 13 arranged between the first power source line and the second power source line. The noise cancellation circuit 13 generates in a power source, against power source noise causing exponential attenuation in vibration with a predetermined period generated at the time of switching an output node of the output circuit to a logic level, power source noise delayed from the former vibration by a half cycle to cause inverse attenuation in vibration with respect to the former vibration to cause the both to cancel out each other.
    • 要解决的问题:提供可以降低输出电路的SSN(同时开关噪声)的振动噪声的半导体器件。 解决方案:半导体器件包括第一和第二电源线,布置在第一电源线VDDQ和第二电源线VSSQ之间的输出电路12,以及布置在第一电源线 和第二电源线。 噪声消除电路13在电源中产生与在将输出电路的输出节点切换到逻辑电平时产生的预定周期的振动中引起指数衰减的电源噪声,从前一个振动延迟的电源噪声 相对于前一个振动使振动产生相反的衰减,导致两者彼此抵消。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Circuit simulation method and device, and program, circuit simulation model and creation method therefor
    • 电路仿真方法与装置及程序,电路仿真模型及其创建方法
    • JP2010122903A
    • 2010-06-03
    • JP2008295956
    • 2008-11-19
    • Elpida Memory Incエルピーダメモリ株式会社
    • IWAKURA KENISA SATOSHIKATAGIRI MITSUAKISASAKI MASARU
    • G06F17/50
    • PROBLEM TO BE SOLVED: To generate a partial circuit model obtained by substantially removing a specific circuit element from a standard circuit model without correcting the standard circuit model, to perform circuit simulation.
      SOLUTION: The circuit simulation method using the standard circuit model having at least two external terminals, the standard circuit being supposed to include the specific circuit element connected in parallel with another circuit element between the two terminals in the standard circuit model. The circuit simulation method has steps of: performing circuit simulation for a circuit including the standard circuit model to obtain an inter-terminal voltage applied to between the two terminals; performing circuit simulation using the specific circuit element alone to obtain a specific current flowing through the specific circuit when the inter-terminal voltage is applied between the two terminals; generating a current source circuit model wherein a current whose absolute value is equal to the specific current flows in the direction opposite to the specific current, and generating the partial circuit model wherein the current source circuit model is connected between the two terminals in parallel with the standard circuit model; and performing the circuit simulation by use of the partial circuit model.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了产生通过在不校正标准电路模型的情况下从标准电路模型基本上去除特定电路元件而获得的部分电路模型,以进行电路仿真。 解决方案:使用具有至少两个外部端子的标准电路模型的电路仿真方法,标准电路应该包括在标准电路模型中两个端子之间的另一个电路元件并联的特定电路元件。 电路仿真方法有以下步骤:对包括标准电路模型的电路进行电路仿真,以获得施加在两个端子之间的端子间电压; 当在两个端子之间施加端子间电压时,使用单独的电路元件执行电路仿真以获得流过特定电路的比电流; 产生电流源电路模型,其中绝对值等于特定电流的电流沿与特定电流相反的方向流动,并产生部分电路模型,其中电流源电路模型连接在两个端子之间,与 标准电路模型; 并使用部分电路模型进行电路仿真。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Design method and design support system for semiconductor device or printed wiring board
    • 半导体器件或印刷电路板的设计方法和设计支持系统
    • JP2010009179A
    • 2010-01-14
    • JP2008165628
    • 2008-06-25
    • Elpida Memory IncHitachi Ltdエルピーダメモリ株式会社株式会社日立製作所
    • NAKAMURA SATOSHIHARA ATSUSHIKATAGIRI MITSUAKIHIROSE YUKITOSHIITAYA SATORUIWAKURA KEN
    • G06F17/50H05K3/00
    • G06F17/5036G06F2217/78H05K1/181H05K3/0005
    • PROBLEM TO BE SOLVED: To provide a design method and a design support system for a semiconductor device or a printed wiring board, using a semiconductor device model properly expressing parasitic elements that occur when mounting a semiconductor chip or a semiconductor package on a printed wiring board or the like.
      SOLUTION: The design method for a semiconductor device with the power source wiring, ground wiring and signal wiring of a semiconductor package and a printed circuit board as an adjustment-object system in a state that the semiconductor device is mounted on the printed wiring board or for a printed wiring board, includes: a step of extracting a correction circuit model 113 for correcting a parasitic element that occurs between the semiconductor device and the printed wiring board; a step of creating a semiconductor model 116 into which the correction circuit model 113 has been inserted; a step of calculating an adjustment-object value based on an adjustment-object system impedance model and the semiconductor device model 116; and a step of determining a design guide for the adjustment-object system by comparing the adjustment-object value with a constraint value.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种用于半导体器件或印刷线路板的设计方法和设计支持系统,使用适当地表示在将半导体芯片或半导体封装安装在基板上时发生的寄生元件的半导体器件模型 印刷电路板等。 解决方案:在半导体器件安装在印刷的状态下的半导体器件的设计方法,其具有作为调整对象系统的半导体封装的电源布线,接地布线和信号布线以及印刷电路板 布线板或印刷布线板的步骤包括:提取用于校正在半导体器件和印刷线路板之间发生的寄生元件的校正电路模型113的步骤; 创建已经插入校正电路模型113的半导体模型116的步骤; 基于调整对象系统阻抗模型和半导体器件模型116计算调整对象值的步骤; 以及通过将调整对象值与约束值进行比较来确定调整对象系统的设计指南的步骤。 版权所有(C)2010,JPO&INPIT