Stats

  • Locked Locked
  • Replies 18
  • Subscribers 126
  • Views 28610
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Monte Carlo simulation for device mismatch

sdineshkumar

I am trying to simulate a SRAM PUF in cadence 5.1. I want to create threshold variations between two back to back connected inverters. I decided to vary threshold of any one of the PMOS . I want to apply monte carlo simulation with guassian distribution to any one of the PMOS. I dont know  how to apply montecarlo variation to a particular PMOS?

Is there any way to do it in virtuoso 5.1

Parents
  • Andrew Beckett

    If you've set up the code for statistical blocks, particularly the mismatch variation, and have models which are in subckts (following the document I told you about), then each device will have different random parameters and so you should then get a mismatch in the Vt (if it's the Vt that your random parameters are affecting) between the devices. You don't need to run monte carlo on just one device - they both will get random values according to the distribution which will differ from each other in some random way.

    So this should create a threshold difference.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    If you've set up the code for statistical blocks, particularly the mismatch variation, and have models which are in subckts (following the document I told you about), then each device will have different random parameters and so you should then get a mismatch in the Vt (if it's the Vt that your random parameters are affecting) between the devices. You don't need to run monte carlo on just one device - they both will get random values according to the distribution which will differ from each other in some random way.

    So this should create a threshold difference.

    Regards,

    Andrew.

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.