This package is very small and cheap to produce. It also has benefits due to the lack of bond wires. Bond wires increase parasitic inductance, and can be a problem for high speed designs.

The downside is that they are very tiny!

The last 5 layers of the Skywater PDK define the layers necessary to build the WLCSP package.

Course feedback

I love the layout of the course, you did a perfect job Matt. Building up the foundation and then getting into the depths of it. Having everything lined up. I love the walkthroughs at the end of each section. I did the work and then I looked back, maybe there's a better way and in your videos you point out some other interesting things as well so that was really helpful. So yes I love the course.

Konrad Wilk (digital course)