SPICE is a general-purpose, open-source analog electronic circuit simulator. It stands for Simulation Program with Integrated Circuit Emphasis. ngspice is a successor, and is easily installable on Linux. It’s the simulator I’ve used to explore the Skywater 130 PDK.

Here’s an example spice simulation file that I used to simulate the inverter I drew.

And here’s a nice demo of me showing how a flip-flop works by simulating a Sky130 D type flip flop with SPICE.

Course feedback

I've always wanted to make chips of my own since forever, but until this initiative it was unbelievably expensive. So I just needed to acquire the knowledge to do it. I saw you going through the whole thing from RTL to a design and that meant you had the insights for all of it.

Tommy Thorn (digital course)