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How to save subckt parameters in Spectre

Dessai

I have device model in subckt form with instance parameter "w". 

This model has another parameter "r" which is a function of "w".

How to save subckt parameter "r" as I sweep parameter "w" in Spectre. 

Thanks,

Parents
  • Andrew Beckett

    I'm not sure this is possible - you should contact customer support for an enhancement request. 

    If the underlying device has a suitable parameter you may be able to do it another way - for example:

    //

    inline subckt forumres (p n)
    parameters w=1u l=10u r=l/w*0.1
    forumres (p n) resistor r=r
    ends forumres

    I1 (n1 0) isource dc=100u
    R1 (n1 0) forumres w=2u

    save R1:res
    save n1
    dc dc dev=R1 param=w start=0.2u stop=2u step=0.2u

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    I'm not sure this is possible - you should contact customer support for an enhancement request. 

    If the underlying device has a suitable parameter you may be able to do it another way - for example:

    //

    inline subckt forumres (p n)
    parameters w=1u l=10u r=l/w*0.1
    forumres (p n) resistor r=r
    ends forumres

    I1 (n1 0) isource dc=100u
    R1 (n1 0) forumres w=2u

    save R1:res
    save n1
    dc dc dev=R1 param=w start=0.2u stop=2u step=0.2u

    Regards,

    Andrew.

Children
  • Dessai
    in reply to Andrew Beckett

    Hi Andrew,

    Thanks for your help.

    Regards,

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