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[Author] Yongqiang LU(1hit)

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  • Navigating Register Placement for Low Power Clock Network Design

    Yongqiang LU  Chin-Ngai SZE  Xianlong HONG  Qiang ZHOU  Yici CAI  Liang HUANG  Jiang HU  

     
    PAPER-Floorplan and Placement

      Vol:
    E88-A No:12
      Page(s):
    3405-3411

    With VLSI design development, the increasingly severe power problem requests to minimize clock routing wirelength so that both power consumption and power supply noise can be alleviated. In contrast to most of traditional works that handle this problem only in clock routing, we propose to navigate standard cell register placement to locations that enable further less clock routing wirelength and power. To minimize adverse impacts to conventional cell placement goals such as signal net wirelength and critical path delay, the register placement is carried out in the context of a quadratic placement. The proposed technique is particularly effective for the recently popular prescribed skew clock routing. Experiments on benchmark circuits show encouraging results.