TSMC also have a manufacturing process used by Tesla's Dojo where you can cut up the chips, throw away the defective ones, and then reassemble working ones into a sort of wafer scale device (5x5 chips for Dojo). Seems like a more logical design to me.
I had been under the impression that Nvidia had done something similar here, but they did not talk about deploying the space saving design and instead only talked about the server rack where all of the chips on the mega wafer normally are.
https://www.sportskeeda.com/gaming-tech/what-nvlink72-nvidia...
Is this similar to a chiplet design? Chiplets have been a thing for a while, so I assume Cerebras avoided them on purpose.