VLSI布局结构表示研究进展

超大规模集成电路技术的迅猛发展迫切需要高性能CAD工具——电子设计自动化软件工具的支持．布局是布图设计中一个极为重要的环节．目前，在深亚微米、超深亚微米工艺下的超大规模、甚大规模集成电路设计中，布局结果的好坏直接影响整个布图设计，因此如何高效地表示布局结构，从而提高布局质量成为布图设计中的一个国际上的研究热点．文中介绍并分析了当前国内外比较流行的布局结构的表示方法研究工作的进展情况．

Research Work of Structure Representation for Placement

The VLSL technology has advanced profoundly in recent years,and strong support is urgently required in this field from high performance IC CAD tools, or electrical design automation (EDA) software environment. Floorplanning and placement play a key role in physical design. The VLSI and ULSI design are under the deep submicron and very deep submicron technology today. The results of placement directly influence the physical design entirely. So the problem becomes a hot research subject. In this paper, the methods to be studied in topological representation of placement are analyzed in detail, and the progress of research in the field is introduced.