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DC25_Paper_TRACK13_ParameterizedCOMAnalysisTool_Pupalaikis.pdf

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1、Parameterized COM Analysis Toolfor Substrate Routing ImpedanceStudyPeter J.Pupalaikis,Nubis CBrett M.D.Sawyer,Nubis CAbstractA tool is presented for parameterizing channel operating margin(COM)and performing parameter sweeps.This tool utilizes a utility script(that will be made available on GitHub),

2、SignalIntegrity(an opensourcePythonbased tool for,among other things,generating sparameters of interconnects),and,of course,theCOM MATLAB script,used for quickly analyzing performance and compliance of channels for variousstandards.A use case for this tool will be presented in a substrate routing im

3、pedance study that was performedwithin our company for a substrate used in our electrooptical transceivers.BiographyPETER J.PUPALAIKIS was born in Boston,Massachusetts in 1964 and received the B.S.degree in electricalengineering from Rutgers University,New Brunswick,New Jersey in 1988,after his serv

4、ice in the UnitedStates Army.He joined LeCroy Corporation(now Teledyne LeCroy),a manufacturer of highperformance measurement equipment located in Chestnut Ridge,New York in 1995 where he worked for 25 years developingtechnology for highspeed oscilloscopes and managing integrated circuit and digital

5、signal processing development,and intellectual property.In 2020 he left LeCroy and became a founding member of NubisCommunications,a manufacturer of electrooptical transceivers,where he is director of signal integrity.His interests include digital signal processing,applied mathematics,signal and pow

6、er integrity,andradio frequency(RF)/microwave systems.Mr.Pupalaikis holds over 50 patents and has authored/coauthored over 40 papers.He contributed achapter to Modern RF/Microwave Measurement Techniques,published in 2013,and is the author of thebook Sparameters for Signal Integrity,published in 2020

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1. **工具开发**:提出基于Python的参数化COM分析工具,结合SignalIntegrity开源软件、MATLAB COM脚本及Excel表格,实现通道参数化建模与参数扫描。 2. **应用案例**:用于1.6 Tbps光收发器基板布线阻抗研究,扫描32通道、5种基板阻抗(85–105 Ω)、10种主机走线长度(1–10英寸)及2种插座模型。 3. **核心结论**: - 基板阻抗对COM影响不显著,但27型布线(层2-7转接)在短走线时COM显著劣化。 - ERL(有效回波损耗)显示90–95 Ω基板阻抗搭配90–100 Ω主机走线最优。 4. **验证方法**:通过TDR测量确认基板阻抗偏差(84–90 Ω差分)及转接结构问题,与仿真结果一致。
**COM分析工具优势?** ** substrate阻抗如何影响性能?** **Python工具如何优化设计?**
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