MPW1 seems an age ago, we submitted in December 2020, but it needed some last minute DRC fixes in February.
Silicon was received a few weeks ago, and unfortunately we have some serious issues that will prevent most designs from working. This appears to be due to a bad clock tree
in the management section of the chip. Additionally, OpenSTA, the tool meant to verify the clock tree was also misconfigured.
The initial announcement is here.
And I’ve made a document trying to collect all the information in one place.
There’s more to find out, and we are still waiting to see how this impacts MPW2 and MPW3.
Update on MPW1 silicon
It’s working much better than we thought!