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Equivalent diode model parameter to ADS's "Imax" and "Ikf(Ik)" diode parameters?

Art254
Hi Everyone,

I am transferring a diode model from ADS to Cadence. In it's ADS model, there is Imax and Ikf, I wonder what's the equivalent model parameters used in Cadence's diode in Analoglib? Please let me know.

In ADS, Imax= explosion current beyond which diode junction current is linearized. Ikf(Ik)= high-injection knee current.

Thank you very much.
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  • Hi Art254,

     

    In the spectre manual that I referenced earlier:

    imelt and imax are used on devices containing p-n junctions. These devices include .... diodes....

    imax is a warning control parameter. Normally, imax does not affect the simulation results. Whenever the junction current is larger than imax, the Spectre circuit simulator issues a warning. The default value of imax is 1A, and the default value of imelt is imax. Therefore, imax can affect the simulation results only when imelt is not specified and takes its value from imax.

    And....16 ikp=`ikA/Area' High-level injection knee current for sidewall. 17 ikr=ik A/Area Reverse high-level injection knee current ( hspice compatibility flag only ).

    I cannot comment on Agilent's model, as I do not support their simulator.  You may want to put in a call to Cadence Customer Support (support.cadence.com) if you cannot find the information that you require in the Cadence Spectre Modeling Guide manual.

     

    best regards,

    Tawna

Reply

  • Hi Art254,

     

    In the spectre manual that I referenced earlier:

    imelt and imax are used on devices containing p-n junctions. These devices include .... diodes....

    imax is a warning control parameter. Normally, imax does not affect the simulation results. Whenever the junction current is larger than imax, the Spectre circuit simulator issues a warning. The default value of imax is 1A, and the default value of imelt is imax. Therefore, imax can affect the simulation results only when imelt is not specified and takes its value from imax.

    And....16 ikp=`ikA/Area' High-level injection knee current for sidewall. 17 ikr=ik A/Area Reverse high-level injection knee current ( hspice compatibility flag only ).

    I cannot comment on Agilent's model, as I do not support their simulator.  You may want to put in a call to Cadence Customer Support (support.cadence.com) if you cannot find the information that you require in the Cadence Spectre Modeling Guide manual.

     

    best regards,

    Tawna

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