editor's blog
Subscribe Now

High-Sigma Simulations

We’ve noted before that the meaning of “corners” is much less obvious for analog circuits than it is for digital. Solido noted in a recent announcement that memory design in particular highlights the challenge. Memories are built of analog circuits that are repeated numerous times, and getting them all to yield on aggressive processes with enormous variation is a tough job.

They say that the standard Monte Carlo “run enough samples to cover the space, and then interpolate the gaps” approach has become untenable because of the number of samples that must be taken – billions – to capture a process with enough fidelity to capture problem areas. You can go with fewer points to simulate, but you may interpolate or extrapolate incorrectly – drastically so in some cases. In particular, if you’re trying for a high-sigma design, it’s unlikely that you’ll adequately check out the tails of the process.

So Solido has announced an enhanced form of meta-simulation: it’s a way they have of analyzing the sample set to determine which points to simulate rather than simulating them all. They claim they can run a 5-billion-sample set in as little 15 minutes. They claim no loss of confidence in the result as compared to running all 5 billion simulations.

You can find more information and a link to some whitepapers in their release

Leave a Reply

featured blogs
Mar 27, 2025
I have to say that I've been blown away by the quality of the sound from my bone conduction headphones from H2O Audio (they even work if you're swimming)....

Libby's Lab

Arduino Portenta Environmental Monitoring Bundle

Sponsored by Mouser Electronics and Arduino

Join Libby and Demo in this episode of “Libby’s Lab” as they explore the Arduino Portenta Environmental Monitoring Bundle, available at Mouser.com! This bundle is perfect for engineers requiring environmental data such as temperature, humidity, and pressure. Designed for ease of use, the bundle is great for IoT, smart home, and industrial devices, and it includes WiFi and Bluetooth connectivity. Keep your circuits charged and your ideas sparking!

Click here for more information about Arduino Portenta Environmental Monitoring Bundle

featured chalk talk

Ultra-low Power Fuel Gauging for Rechargeable Embedded Devices
Fuel gauging is a critical component of today’s rechargeable embedded devices. In this episode of Chalk Talk, Amelia Dalton and Robin Saltnes of Nordic Semiconductor explore the variety of benefits that Nordic Semiconductor’s nPM1300 PMIC brings to rechargeable embedded devices, the details of the fuel gauge system at the heart of this solution, and the five easy steps that you can take to implement this solution into your next embedded design.
May 8, 2024
39,163 views