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Montecarlo Simulations for Process only in Spectre (Read 1891 times)

cmos.analogvala

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Montecarlo Simulations for Process only in Spectre
Apr 23^rd, 2009, 1:46am

How does montecarlo simulation for process work ? Let's say my montecarlo file for process for Cadence SPECTRE is as given below.

statastics {
process {
vary lpe0_nmos dist=guass std=1e-10
vary lpe0_pmos dist=guass std=1e-10 } }

Runnning MC for 100 ineration means it take any random value of lpe0_nmos and lpe0_pmos during these 100 ierations. However all the transistors on the chip/circuit have same lpe0 value in a given iteration.

Am I correct ?

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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: Montecarlo Simulations for Process only in Spectre Reply #1 - Apr 24^th, 2009, 6:34am Yes. Each iteration will come up with a new random value for these two parameters, but it is common to all subckts in the design. See also http://www.designers-guide.org/Modeling/montecarlo.pdf Regards, Andrew.
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cmos.analogvala Community Member Offline Posts: 65 India	Re: Montecarlo Simulations for Process only in Spectre Reply #2 - Apr 24^th, 2009, 8:38pm This is very very useful Thanks a Lot
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