Interesting read David, and kudos for publicly going out on a limb on this.

I don't quite understand the QWFET though. What exactly is the quantum effect? The focus of the text seems to be on the way charge is carried through the channel, but the transistor design in Figure 1 makes me think that the magic is more in the way that charge is transferred to and from it, with that whole complicated InAlAs/Si/InP hamburger that the gate is embedded in. It also looks like the InGaAs is a uniform layer on the wafer, so I suppose there should also be a mechanism that prevents substrate leakage.

The QW-FinFET design makes a lot more sense to me, though I can't reconcile the four-side containment with the earlier statement that the quantum well is formed when the charge carriers act as if they are in a 2-dimensional configuration. This looks way more like a traditional semiconductor, so that again makes me wonder what exactly makes it quantum.

Thanks in advance for anyone who can clarify :)