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Lokesh Mahor

how to simulate CNFET Model in SPICE3f4

I want to simulate CNFET in spice3f4 but i don't know how to include verilog model files

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    Anonymous

    While all of the above suggestions about a choice of simulator
    are probably correct - I use proprietary simulators developed by
    our own CAD group within my company - there are two, equally
    important considerations.
    .
    FIRST: You need to be very sure of the equations that are used
                 to model your devices: you cannot achieve accuracy in
                 your circuit simulations without very accurate models,
    .
    SECOND: These models, and the resulting simulations, cannot
                 be accurate - or even meaningful - unless a significantly
                large number of devices have been fitted to the equations
                in the lengthy process known as "device characterization".
    .
    We can add a further caution in this latter respect. If the devices
    measured for characterization purposes show a large amount of
    variation, and these statistics are aggregated over a long period
    of time - and these data are used in circuit studies - you'll need to
    simulate your circuits using extreme ('corner') models. These will
    alert you to the sensitivity of your circuit to production variances.
    Furthermore, you will need to test circuit behaviour at maximum
    and minimum temperatures - often as wide as -50oC to +125oC.
    .
    Of course, before such circuit simulation can be conducted, you
    will need to be sure that the inherent temperature-dependencies
    of the devices have been accurately captured in the modelling
    equations. 
    .
    Of course, all this poses a great deal of initial work, iCloud login I'm not sure
    of the state of the modeling art for carbon nanotube FETs; but I
    would very much like to know how advanced is this particular
    aspect of the technology.

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