Virtuoso iQuantus Insight及Quantus Insight流程在FINFET先进工艺项目中加速后仿迭代的应用  

Application of Virtuoso iQuantus Insight and Quantus Insight Flow on FINFET advance processes to accelerate post-simulation iteration

作　　者：李祉怡 孙航 丁学伟 张慧丽 曾义 Li Zhiyi;Sun Hang;Ding Xuewei;Zhang Huili;Zeng Yi(Sanechips Technology Co.,Ltd.,Shenzhen 518055,China;State Key Laboratory of Mobile Network and Mobile Multimedia Technology,Shenzhen 518055,China;Cadence Design Systems,Inc.,Shanghai 200120,China)

机构地区：[1]深圳市中兴微电子技术有限公司,广东深圳518055 [2]移动网络和移动多媒体技术国家重点实验室,广东深圳518055 [3]上海楷登电子科技有限公司,上海200120

出　　处：《电子技术应用》2024年第8期26-31,共6页Application of Electronic Technique

摘　　要：随着工艺演进,尺寸进一步缩小带来了更多寄生通路和更大的寄生电阻,后仿结果和前仿相去甚远。如何快速缩小前后仿之间的差距成为重要课题。传统设计中只能通过Quantus Extracted View相对直观地对寄生进行分析,无法更详细地进行分析,这成为设计者们面临的艰巨挑战。同时,后仿发现问题,只能通过“修改电路-版图迭代-再次后仿”反复优化,迭代周期长,如何降低时间成本成为各公司关注的重点。Virtuoso iQuantus Insight(ViQI)/Quantus Insight(QI)可基于寄生网表文件进行寄生分析及结果可视化。工程师可借此对寄生进行准确的分析及假设,无需版图迭代,即可进行设计优化。讨论了如何通过ViQI/QI工具在FINFET先进工艺项目中实现快速的后仿迭代,大幅提高工作效率。With the evolution of process,the continuous scaling of size introduced more parasitic paths and larger parasitic resistors,causing great differences between the results of post-simulaion and pre-simulation.How to quickly narrow the gap between post-simulation results and pre-simulation results becomes an improtant topic.In traditional design,parasite can only be analyzed through tools like Quantus Extracted View,and the results cannot be displayed in more detail.How to better analyze the parasitic netlist has become a great challange.In addition,after problems found in post-simulation,the design can only be optimized by an iteration process of modifying the circuit design-modifying the layout design-redo the post-simulation.This iteration process is a long period,how to reduce the iteration time cost becomes a key issue for design companies.Virtuoso iQuantus Insight(ViQI)/Quantus Insight(QI)can do accurate parasitic analysis and visuallization based on the parasitic netlist file.Engineers can use this to accurately analyze parasitic parameters,and assume the parasitic values to optimize the design without layout modification.This article describes how to fast iterate the circuit design using ViQI/QI,and so greatly improve work efficiency.

关 键 词：Virtuoso iQuantus Insight Quantus Insight 后仿网表分析 寄生假设 快速迭代 

分 类 号：TN402[电子电信—微电子学与固体电子学]