calculating k-factor in .lib

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Hi,
If my slowest corner voltage is 1.5v and the the .lib is characterized for 1.62v
do I use the ratio of 1.62/1.5 to calculate the voltage related k-factors or is it
more involved ?
Thanks.
 

No you can not do that.

It is your .lib is cherazed for 1.5v and 1.62v & not that your best/worst voltage depends on K factor.
generally around 10% variation will be considered for charct lib with Typ voltage. Can change company to company or process to process.

finding a K factor from .lib is very difficult as per my knowledge, you have ask a process development people only for this or else have to check spice models.
 

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