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Incorrect flicker noise model in some devices

Frank Wiedmann

An error in the flicker noise model of some devices has been found that leads to incorrect results in pnoise, hbnoise and transient noise analysis. Details can be found at https://designers-guide.org/forum/YaBB.pl?num=1579133686. Cadence R&D are already looking into this.

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  • Dear Frank,

    Thank you, very much for alerting me (us) to this issue! I took some time to read through the paper and believe I have a basic understanding of the root cause of the error. As you also noted in your recent DesignersGuide post, I tested for the presence of the modeling error in an NMOS BSIM4 model and found it is present in the version of Cadence we are using (18.1.ISR8). Thank you again!

    Shawn

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  • Dear Frank,

    Thank you, very much for alerting me (us) to this issue! I took some time to read through the paper and believe I have a basic understanding of the root cause of the error. As you also noted in your recent DesignersGuide post, I tested for the presence of the modeling error in an NMOS BSIM4 model and found it is present in the version of Cadence we are using (18.1.ISR8). Thank you again!

    Shawn

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