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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
This paper studies and implements an integrated system for VLSI/ULSI physical design. The multi-layer mechanism is used to get great efficiency and speedup. The physical design system is integrated in three different layers, which are called the data interface layer (DIL), the data management layer (DML) and the data display layer (DDL). A quad-tree data structure is used in DDL to accelerate the graphics showing and the interaction between users and the system.
Keywords:physical design, system integration, multi-layer mechanism, quad-tree