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Developing custom SPICE compatible transistor model

farhan89

I am trying to develop a simple transistor model in which I could just vary drain-source and gate-source voltage and calculate the drain current. I have drain current equation as well as the parameters values on which it is dependent. Can I write my own SPICE model (without any .MODEL statement) with this information and run it with spectre/hspice in ADE ?. Any examples for such models ?

Farhan

Parents
  • Andrew Beckett

    Farhan,

    You could use Verilog A for this. You might look at some examples on  

    although these will generally be more complicated than what you're suggesting. 

    Andrew.

Reply
  • Andrew Beckett

    Farhan,

    You could use Verilog A for this. You might look at some examples on  

    although these will generally be more complicated than what you're suggesting. 

    Andrew.

Children
  • SHASHANK PATHAK
    in reply to Andrew Beckett

    Hey Andrew,

    Can you help me with a problem.

    How to change Hspice (.lib) model file of GNRFET to candece (Virtuoso compatible.) file.

    Thanks in advance.

    SHASHANK 

  • Andrew Beckett
    in reply to SHASHANK PATHAK

    Hi Shashank,

    Nobody ever seems to read the Forum Guidelines, unfortunately. So this shouldn't be on the end of another post which is only loosely related (I don't know what this GNRFET model is, or how it is implemented; maybe it's a Verilog-A model?) but a fresh post.

    In general you can use HSPICE model files directly in Spectre (there's no tool called "Cadence" or even "candece") without needing to change them.

    However, it rather depends on what's in the model file. You don't give any context or detail to your question.

    Andrew.

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