您的位置: 专家智库 > >

张轶谦

作品数:6 被引量:8H指数:2
供职机构:清华大学信息科学技术学院计算机科学与技术系更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>
相关领域:电子电信自动化与计算机技术更多>>

文献类型

  • 6篇中文期刊文章

领域

  • 5篇电子电信
  • 1篇自动化与计算...

主题

  • 2篇OPTIMI...
  • 2篇TIMING
  • 2篇VLSI
  • 2篇INTERC...
  • 1篇电路
  • 1篇优化算法
  • 1篇互连
  • 1篇互连线
  • 1篇缓冲器
  • 1篇缓冲器插入
  • 1篇集成电路
  • 1篇NETS
  • 1篇PAT
  • 1篇POINT
  • 1篇ROUTER
  • 1篇ROUTIN...
  • 1篇SCALE
  • 1篇STRUCT...
  • 1篇ACCURA...
  • 1篇BIT

机构

  • 6篇清华大学

作者

  • 6篇洪先龙
  • 6篇蔡懿慈
  • 6篇张轶谦
  • 3篇周强
  • 2篇谢民
  • 1篇吴为民
  • 1篇经彤
  • 1篇张雁
  • 1篇许静宇
  • 1篇杨长旗

传媒

  • 5篇Journa...
  • 1篇电子学报

年份

  • 1篇2005
  • 2篇2004
  • 1篇2003
  • 2篇2002
6 条 记 录,以下是 1-6
排序方式:
基于精确时延模型考虑缓冲器插入的互连线优化算法被引量:6
2005年
 随着VLSI电路集成度增大和特征尺寸的不断减小,连线的寄生效应不可忽略,互连线的时延在电路总时延中占了很大的比例,成为决定电路性能的主要因素.在互连时延的优化技术中,缓冲器插入是最有效的减小连线时延的方法.本文提出了一个在精确时延模型下,在布线区域内给定一些可行的缓冲器插入位置,对两端线网进行拓扑优化,并同时插入缓冲器以优化时延的多项式时间实现内的算法.我们的算法不但可以实现时延的最小化,也可以在满足时延约束的条件下,最小化缓冲器的插入数目,从而避免不必要的面积和功耗的浪费.
张轶谦洪先龙蔡懿慈
关键词:缓冲器插入布图超大规模集成电路
A Gridless Router Based on Hierarchical PB Corner Stitching Structure
2003年
A multi layer gridless area router is reported.Based on corner stitching,this router adopts tile expansion to explore path for each net.A heuristic method that penalizes nodes deviating from the destination is devised to accelerate the algorithm.Besides,an enhanced interval tree is used to manage the intermediate data structure.In order to improve the completion rate of routing,a new gridless rip up and rerouting algorithm is proposed.The experimental results indicate that the completion rate is improved after the rip up and reroute process and the speed of this algorithm is satisfactory.
张轶谦蔡懿慈洪先龙张雁谢民
Path-Based Timing Optimization by Buffer Insertion with Accurate Delay Model
2004年
An algorithm of path based timing optimization by buffer insertion is presented.The algorithm adopts a high order model to estimate interconnect delay and a nonlinear delay model based on look up table for gate delay estimation.And heuristic method of buffer insertion is presented to reduce delay.The algorithm is tested by industral circuit case.Experimental results show that the algorithm can optimize the timing of circuit efficiently and the timing constraint is satisfied.
张轶谦周强洪先龙蔡懿慈
Timing Optimization by Inserting Minimum Buffers with Accurate Delay Models
2004年
An algorithm of minimizing the number of buffers under certain delay constraint with accurate delay models is presented.Given a two-terminal net,the algorithm can minimize the total number of buffers inserted to meet the delay constraint.A high order delay model is applied to estimate interconnect delay and a nonlinear delay model based on look-up table is for buffer delay estimation.The experimental results show that the algorithm can efficiently achieve the trade-offs between number of buffers and delay,and avoid needless power and area cost.The running time is satisfactory.
张轶谦洪先龙周强蔡懿慈
关键词:VLSI
Cross Point Assignment Algorithm Under Consideration of Very Long Nets
2002年
A cross point assignment algorithm is proposed under consideration of very long nets (LCPA).It is to consider not only the cost of connection between cross points and pins and the exclusive cost among cross points on the boundary of a global routing cell,but also the cost of displacement among cross points of the same net.The experiment results show that the quality and speed in the following detailed routing are improved obviously,especially for very long nets.
张轶谦谢民洪先龙蔡懿慈
关键词:VLSI
Challenges to Data-Path Physical Design Inside SOC被引量:2
2002年
Previously,a single data-path stack was adequate for data-path chips,and the complexity and size of the data-path was comparatively small.As current data-path chips,such as system-on-a-chip (SOC),become more complex,multiple data-path stacks are required to implement the entire data-path.As more data-path stacks are integrated into SOC,data-path is becoming a critical part of the whole giga-scale integrated circuits (GSI) design.The traditional physical design methodology can not satisfy the data-path performance requirements,because it can not accommodate the data-path bit-sliced structure and the strict performance (such as timing,coupling,and crosstalk) constraints.Challenges in the data-path physical design are addressed.The fundamental problems and key technologies in data-path physical design are analysed.The corresponding researches and solutions in this research field are also discussed.
经彤洪先龙蔡懿慈许静宇杨长旗张轶谦周强吴为民
关键词:SYSTEM-ON-A-CHIP
共1页<1>
聚类工具0