You Can Make a Microprocessor That’s All Your Own

What happened

But they’re not the only player in the space, and [Breaking Taps] has a video showing their microprocessor built using wafer (the disc of silicon that chips are cut from).space. The microprocessor itself is a little unusual, being a transport triggered architecture design with two busses.

It’s a level or two more difficult than passing the DRC standards for your PCB fabricator. The result is a chip carrier with the chip itself visible under clear epoxy. It’s using an old fabrication technology so the silicon is surprisingly big, but unlike Tiny Tapeout’s cell based fabrication the whole chip is the one circuit.