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MOS working at subthreshold region.

Discussion in 'Electronic Basics' started by boki, Aug 29, 2003.

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  1. boki

    boki Guest

    Hi, All:

    When simulation MOS at subthreshold region ( SPICE label it as cut-off), but
    the total circuit function simulation is work, how is the accuracy in wafer?

    Does the SPICE simulation is correct when MOS working at subthreshold region
    but SPICE label it as cut-off region?


  2. Depends on how good the model is, and what model the simulation is
    using. If you have a decent BSim3v3 model it should be quite accurate.
    However, for example, Spice MOS1 does not model subthreshold operation
    at all.

    Kevin Aylward
    SuperSpice, a very affordable Mixed-Mode
    Windows Simulator with Schematic Capture,
    Waveform Display, FFT's and Filter Design.
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