集成电路下基于BST-SALT算法的时钟树优化技术OA
Clock Tree Optimization Technology Based on BST-SALT Algorithm in Integrated Circuits
随着集成电路工艺节点的不断微缩与设计规模的持续增长,时钟树综合在时序收敛、功耗控制及信号完整性方面面临严峻挑战.针对传统方法在时钟偏差约束、路径延迟优化与资源效率间难以实现全局平衡的问题,提出一种基于有界偏差树与斯坦纳浅光树融合的混合算法,通过引入插入时延估计模型和关键线长模型,构建了时钟树优化模型.实验结果表明,本研究提出的时钟树优化模型最大路径延迟(79 ps)较传统延迟合并嵌入算法(92 ps)降低了 14.13%.在车规级芯片与 7 nm移动SoC等工业场景中,动态功耗仅为 2.30 mW/MHz,时钟偏差波动仅为 15.20 ps.本研究为高性能低功耗芯片设计提供了兼顾时序、功耗与鲁棒性的全局优化方案,为异构集成与先进封装技术的改进提供了一种新的思路.
With the continuous miniaturization of integrated circuit process nodes and the continuous growth of design scale,clock tree synthesis faces severe challenges in timing convergence,power consumption control and signal integrity.Aiming at the problem of difficult global balance between clock bias constraints,path delay optimization,and resource efficiency in traditional methods,a hybrid algorithm based on bounded bias tree and Steiner shallow light tree fusion is proposed.By introducing an insertion delay estimation model and a key line length model,a clock tree optimization model is constructed.The experimental results show that the proposed clock tree optimization model reduces the maximum path delay(79 ps)of the clock tree by 14.13%compared to the traditional delay merging embedding algorithm(92 ps).In industrial scenarios such as automotive grade chips and 7 nm mobile SoCs,the dynamic power consumption is only 2.30 mW/MHz.The research provides a global optimization solution that balances timing,power consumption,and area for high-performance and low-power chip design,offering a new approach for improving heterogeneous integration and advanced packaging technologies.
陈龙燕;项雷军
泉州职业技术大学工学院,福建 泉州 362268华侨大学信息科学与工程学院,福建 厦门 361021
信息技术与安全科学
有界偏差树斯坦纳浅光树时钟树集成电路时钟偏差
bound skew treeSteiner SLTclock treeintegrated circuitclock skew
《南京师范大学学报(工程技术版)》 2026 (1)
15-20,6
福建省教育厅中青年教师教育科研项目(科技类)(JAT201214).
评论