> Bi-SRAM

Looks cool, but isn't it by definition planar process-only, no FinFET for you?

I'll admit I am not well versed on this subject on any measure, but there is this [0] paper indicating FinFET is doable, although IDK if there's any sort of hand-waving or other limitations involved.

[0] - https://ieeexplore.ieee.org/document/8614555