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assert check for different duration

zinal7

Hello

I have assert statement as below for 1.8V device and checking for the time 1ns.

check_ov_vgs_nch assert mod=nch expr="(V(g)-V(s))" min=-vmaxCore max=vmaxCore level=warning duration=checkDurationTime 

checkDurationTime=1ns & vmaxCore=1.98V

I was wondering if - I could check for the 'product of - max voltage allowed and the duration' ? Can I do it in the expression statement of assert anyway ?

My thinking behind this is -

Suppose I have 2V device and checking it for 10ns - but what I have 50V device (It may not violate SOA check), so better to check product of the voltage limit and the duration ?

Please let me know if my thinking is correct ?

Thanks, Zinal

  • I can't think of a good way of doing this (although I didn't spend that long trying to think of a solution) - I was wondering whether you could do the check on the integ() of the measurement but you would probably want that to reset somehow. 

    Perhaps you should contact customer support on this one too.

    Regards,

    Andrew

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