Hehe, yeah I was just reading a magazine this morning talking about it's the next big material in cycling for everything from strengthening carbon fiber parts to conduct electricity to replace cables used for shifting/brakes to hearth rate monitoring clothing etc...

Seems like the wonder material.

Carbon sucks in chips.

C has a 5.5eV band gap while Si has a 1.1 and Ge has a 0.67

Whats bandgap? The energy difference between a conductor/insulator in a semi-conductor. https://en.wikipedia.org/wiki/File:Bandgap_in_semiconductor....

The only real reason to switch to carbon chips is noise reduction at the 4nm node (if we ever go that far, we're getting into Long X-Rays at that point for lithography).

Also 4nm node will only be ~16-18 carbon atoms wide.

Graphene is a massive pain to manufacture. For example, I don't think you can sputter it on to wafers.