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The MOS Technologies |
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There is one nMOS technology: "nmos" (the specifications used in the Mead and Conway textbook).
There are many more CMOS technologies available. The most basic is "cmos", which uses an idealized set of design-rules from a paper by Griswold. The "mocmos" process has double metal with MOSIS design rules. The "mocmos2" process has double metal and double polysilicon. The "mocmossub" process has quadruple metal and double polysilicon with submicron rules (this is the default technology, and it is described more fully in the next section). There is even "rcmos", which uses round geometry!
Each MOS technology has two transistors (enhancement and depletion in nMOS technologies, n and p in CMOS). These nodes can have serpentine paths by highlighting them and using the Polygon Edit command of the Edit menu.
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