Efficient method for modeling three-dimensional interconnect structures for frequency-dependent crosstalk simulation
    1.
    发明授权
    Efficient method for modeling three-dimensional interconnect structures for frequency-dependent crosstalk simulation 失效
    针对频率相关串扰模拟的三维互连结构建模的高效方法

    公开(公告)号:US06418401B1

    公开(公告)日:2002-07-09

    申请号:US09248667

    申请日:1999-02-11

    IPC分类号: G06F1750

    CPC分类号: G06F17/5036

    摘要: A method for reducing the computation time and improving the productivity in designing high-performance microprocessor chips that have no failures—due to crosstalk noise. The technique allows a very fast calculation of tables of frequency-dependent circuit parameters needed for accurate crosstalk prediction on lossy on-chip interconnections. These tables of parameters are the basis for CAD tools that perform crosstalk checking on >10K critical nets on typical microprocessor chips. A fast table generation allows for rapid incorporation of design or processing changes and transition to more advanced technologies.

    摘要翻译: 一种减少计算时间并提高设计高性能微处理器芯片的生产率的方法,这些微处理器芯片由于串扰噪声而无故障。 该技术允许非常快速地计算在有损片上互连上精确串扰预测所需的频率相关电路参数表。 这些参数表是在典型微处理器芯片上对> 10K关键网进行串扰检查的CAD工具的基础。 快速表生成允许快速结合设计或处理更改并转换到更先进的技术。

    Method to include delta-I noise on chip using lossy transmission line representation for the power mesh
    5.
    发明授权
    Method to include delta-I noise on chip using lossy transmission line representation for the power mesh 失效
    使用功率网格的有损传输线表示在芯片上包括Δ-I噪声的方法

    公开(公告)号:US06963204B2

    公开(公告)日:2005-11-08

    申请号:US10818578

    申请日:2004-04-06

    摘要: The present invention relates to a method for analyzing the noise prediction within one or more electrical circuits, wherein the electrical circuits have a power mesh grid distribution system that feeds power levels to the electrical circuits that are connected by signal wires. After identifying a driver and receiver electrical circuit to be analyzed, a power block is generated that is associated with the driver and receiver electrical circuit by partitioning an area of a power mesh grid distribution system into a power block that can be modeled with lossy transmission line techniques. Next, signal wires situated between the driver and receiver electrical circuits are partitioned into signal blocks that can be modeled with lossy transmission line techniques. Lastly, the power blocks and signal blocks associated with the electrical circuits are analyzed in order to predict the noise performance within the electrical circuits.

    摘要翻译: 本发明涉及一种用于分析一个或多个电路内的噪声预测的方法,其中电路具有功率网格分布系统,其将功率电平馈送到通过信号线连接的电路。 在识别要分析的驱动器和接收器电路之后,通过将功率网格分布系统的区域划分成可以用有损传输线建模的功率块来产生与驱动器和接收器电路相关联的功率块 技术 接下来,位于驱动器和接收器电路之间的信号线被分割成可以用有损传输线技术建模的信号块。 最后,分析与电路相关联的功率块和信号块,以便预测电路内的噪声性能。

    Method for performing coupling analysis
    6.
    发明授权
    Method for performing coupling analysis 失效
    执行耦合分析的方法

    公开(公告)号:US06546529B1

    公开(公告)日:2003-04-08

    申请号:US09677362

    申请日:2000-10-02

    IPC分类号: G06F945

    CPC分类号: G06F17/5036

    摘要: Deterministic evaluation of coupling noise voltage is a function of many physical and electrical parameters such as wiring level, widths, spacing, net topologies, drv impedance and slew rates. This evaluation requires electrical modeling and subsequent circuit simulation to assess the sensitivities of these parameters. These sensitivities can be categorized as coupling guidelines that can be directly linked through extracted physical design data. This invention discloses the development and implementation of a technique for using a coupling guideline table early in the design of an integrated circuit when all the parameters generally required for coupling noise voltage calculations are not available. The steps include: creating a flat wire routing map of the integrated circuit, identifying the coupled wire segments on the integrated circuit, tracking wire interconnection patterns on the integrated circuit, deriving electrical parameters for the coupled wire segments, and generating a coupling guideline table with parameters for a plurality of electrical parameters. The parameters in the coupling guideline table are applied to the derived electrical parameters and a report is generated that lists the derived electrical parameters that fail to comply with the parameters in the coupling guideline table.

    摘要翻译: 耦合噪声电压的确定性评估是许多物理和电气参数的函数,如布线级别,宽度,间距,网络拓扑,drv阻抗和转换速率。 该评估需要电气建模和后续电路仿真来评估这些参数的灵敏度。 这些敏感性可以归类为可以通过提取的物理设计数据直接相关联的耦合准则。 本发明公开了当耦合噪声电压计算通常需要的所有参数不可用时,在集成电路设计早期使用耦合指南表的技术的开发和实现。 步骤包括:创建集成电路的扁平布线图,识别集成电路上的耦合线段,跟踪集成电路上的导线互连图案,导出耦合的线段的电参数,以及生成具有 用于多个电参数的参数。 耦合准则表中的参数应用于导出的电气参数,并生成报告,列出导出的电气参数不符合耦合指南表中的参数。

    Methods for the measurement of the frequency dependent complex
propagation matrix, impedance matrix and admittance matrix of coupled
transmission lines
    8.
    发明授权
    Methods for the measurement of the frequency dependent complex propagation matrix, impedance matrix and admittance matrix of coupled transmission lines 失效
    耦合传输线的频率相关复传播矩阵,阻抗矩阵和导纳矩阵的测量方法

    公开(公告)号:US5502392A

    公开(公告)日:1996-03-26

    申请号:US151595

    申请日:1993-11-12

    摘要: A method for completely characterizing coupled transmission lines by short-pulse propagation is described. The complex frequency-dependent propagation matrix, impedance matrix and admittance matrix for a set of n parallel transmission lines can be determined by comparing the properties of two sets of coupled transmission lines of different length. Each transmission line set has two conductors of unequal length and ground conductors to form a coupled transmission line system. Each transmission line set can have uncoupled ends. An input pulse is provided at at least one node of each transmission line set. The complex frequency dependent propagation matrix of each transmission line set is determined by a comparison of the output pulses at the remaining nodes of each transmission line set which involves ratioing to cancel out the effect of the pad-to-probe discontinuity and the uncoupled ends which make it unnecessary to do any embedding. For a transmission line wherein the dielectric loss is negligible, the complex frequency dependent characteristic admittance can be determined from the propagation matrix and the empirically determined capacitance matrix. For a transmission line wherein the resistive loss is negligible, the frequency dependent characteristic impedance matrix can be determined from the propagation matrix and the empirically determined inductance matrix. Specific structures are used with the measurement method to determine these coupled transmission line parameters. The method is particularly useful to determine these parameters for transmission lines in semiconductor chip packaging substrates.

    摘要翻译: 描述了通过短脉冲传播完全表征耦合传输线的方法。 可以通过比较两组不同长度的耦合传输线的性质来确定一组n条并行传输线的复频率相关传播矩阵,阻抗矩阵和导纳矩阵。 每个传输线组具有两个不等长度的导体和接地导体,以形成耦合传输线系统。 每个传输线组可以具有非耦合端。 在每个传输线组的至少一个节点处提供输入脉冲。 每个传输线组的复频率相关传播矩阵通过比较每个传输线组的剩余节点上的输出脉冲来确定,该比较涉及比例以抵消焊盘与探针不连续性的影响和非耦合端 无需做任何嵌入。 对于其中介电损耗可忽略的传输线,可以根据传播矩阵和经验确定的电容矩阵来确定复频率相关特性导纳。 对于其中电阻损耗可忽略的传输线,可以从传播矩阵和经验确定的电感矩阵确定频率相关特性阻抗矩阵。 与测量方法一起使用具体结构来确定这些耦合的传输线参数。 该方法对于确定半导体芯片封装衬底中的传输线的这些参数特别有用。

    Method and system for characterizing coupling capacitance between integrated circuit interconnects
    10.
    发明授权
    Method and system for characterizing coupling capacitance between integrated circuit interconnects 失效
    表征集成电路互连之间的耦合电容的方法和系统

    公开(公告)号:US06333680B1

    公开(公告)日:2001-12-25

    申请号:US09677348

    申请日:2000-10-02

    IPC分类号: H03B524

    CPC分类号: G01R27/2605 G01R31/04

    摘要: An exemplary embodiment of the invention is a method of characterizing capacitances of a plurality of integrated circuit interconnects. The method includes coupling a first oscillator to a first integrated circuit interconnect and coupling a second oscillator to a second integrated circuit interconnect. The first oscillator is activated to characterize the sum of (i) coupling capacitance between the first integrated-circuit interconnect and the second integrated-circuit interconnect and (ii) ground capacitance between the first integrated-circuit interconnect and a ground. In addition, both of the first oscillator and the second oscillator are activated to characterize the ground capacitance between the first integrated-circuit interconnect and the ground.

    摘要翻译: 本发明的示例性实施例是表征多个集成电路互连的电容的方法。 该方法包括将第一振荡器耦合到第一集成电路互连并将第二振荡器耦合到第二集成电路互连。 激活第一振荡器以表征(i)第一集成电路互连和第二集成电路互连之间的耦合电容和(ii)第一集成电路互连和地之间的接地电容之和的和。 此外,第一振荡器和第二振荡器都被激活以表征第一集成电路互连和地之间的接地电容。