Kazuhiko Takamizawa, Tsuneo Matsuda, Tomoyuki Fujita, Hisashi Mizumura, Hiroshi Nakamura, Fumihide Kitajima, Masahiro Murakoshi, Satoshi Goto

    Research output: Contribution to journalArticle


    An automatic/interactive layout Computer Aided Design (CAD) system for designing master-slice LSI chips, is presented which places function blocks and gives wiring patterns on the chip. Since 100% routing is essential for master-slice layout design, it is urgently required to establish a strong CAD system that significantly reduces the design time. The LAMBDA system has been developed to achieve complete net connectivity in as short a design time as possible, where efficient automatic procedures are implemented as well as highly interactive functions. The system adopts two-level hierarchical algorithms for placement and routing problems. Furthermore, highly interactive functions are realized by exploiting human intelligence and the computer's high speed processing.

    Original languageEnglish
    Pages (from-to)32-42
    Number of pages11
    JournalNEC Research and Development
    Issue number73
    Publication statusPublished - 1984 Apr

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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  • Cite this

    Takamizawa, K., Matsuda, T., Fujita, T., Mizumura, H., Nakamura, H., Kitajima, F., Murakoshi, M., & Goto, S. (1984). LAMBDA: AN AUTOMATIC/INTERACTIVE CAD SYSTEM FOR MASTER-SLICE LSIs. NEC Research and Development, (73), 32-42.