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首页> 外文会议>2007 IEEE International Conference on Computer-Aided Degign and Computer Graphics >Simultaneous Switching Noise Consideration for Power/Ground Network Optimization
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Simultaneous Switching Noise Consideration for Power/Ground Network Optimization

机译：同时优化功率/地面网络的开关噪声

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摘要

With the rapid development of semiconductor technology,the working frequency of chips increases dramatically. Thus simultaneous switching noise (SSN) must be considered for robust power/ground (P/G) network design. In this paper,we mainly focus on the SSN effects for P/G network optimization. We first point out the drawbacks of the P/G optimization process without considering the SSN,by analyzing the optimized P/G grids. Then we propose a random walk based technique to consider SSN by adding decoupling capacitor (decap) prior to the nonlinear optimization process. This additional decap allocation phase constructs good current return path for the switching current caused by clock buffers and then reduces the dynamic voltage drop. Experiment results show that the proposed method achieves 2X speed up over the original approach without adding decaps in advance while the decap budget overhead is acceptable.
机译：随着半导体技术的飞速发展，芯片的工作频率急剧增加。因此，对于健壮的电源/接地（P / G）网络设计，必须考虑同时开关噪声（SSN）。在本文中，我们主要关注SSN对P / G网络优化的影响。通过分析优化后的P / G网格，我们首先指出了不考虑SSN的P / G优化过程的弊端。然后，我们提出了一种基于随机游动的技术，通过在非线性优化过程之前添加去耦电容器（decap）来考虑SSN。此额外的decap分配阶段为由时钟缓冲器引起的开关电流构建了良好的电流返回路径，然后降低了动态电压降。实验结果表明，该方法在不增加封顶费用的情况下，可以比原始方法提高2倍的速度，而封顶预算的开销是可以接受的。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    Saike HE; rnYuan DONG; rnHaila WANG;

  • 作者单位

    Le Kang@Department of Computer Science and Technology,Tsinghua University,Beijing,P.R.China--Yici Cai@Department of Computer Science and Technology,Tsinghua University,Beijing,P.R.China--Jin Shi@Department of Computer Science and Technology,Tsinghua University,Beijing,P.R.China--Xianlong Hong@Department of Computer Science and Technology,Tsinghua University,Beijing,P.R.China--Sheldon X.-D.Tan@Department of Electrical Engineering,University of California at Riverside,USA--Xiaoyi Wang@Department of Computer Science and Technology,Tsinghua University,Beijing,P.R.China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TP391.42;
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