Comment by simne

> it's not really a bus it's just addressed multiple chips on the same wafer

I'm electronics engineer, and even have once baked one chip layer on semiconductor practice, so I'm aware about technologies.

As I said before on Sinclair, few companies tried to make new on semiconductor market, and even some have success.

RAM manufacturers for a long time using approach of make multi-chip on one wafer - most RAM chips actually have 4..6 RAMs in one package, but few of them don't pass tests and disabled by fuses, so appear chips with 2 or 4 RAMs enabled and even with odd number of enabled chips.

Looks like Cerebras use similar to RAM manufacturers approach, just for other niche.