Custom MOS VLSI design: tools and methods

The MOSIS prototype fabrication system is discussed. Completed circuit layouts are transmitted to MOSIS over computer networks or via magnetic tape. MOSIS compiles multiproject wafers each week and supervises their fabrication. Three example CMOS designs are presented in varying detail. The first is a simple full-custom digital circuit (Swiftcache) the second is a semicustom digital circuit (Sparsecache), designed using a silicon compiler, and the third is a small, full-custom analog circuit.<
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