VTFET is sub 2nm, on TSMC time table, assuming they use it, you get Nanowire ( GAA ) with 2nm in 2025, it normally get another generation of fine tuning and cost amortisation. So you are looking at 2029 ( 1nm ) for volume production at the earliest.
At one time this research was shared amongst members of Sematech (which is the origin of the current NanoTech center in Albany where this work was done). But about 10 years ago, Sematech broke up as companies decided it was cheaper and more secure IP-wise to "go their own way" (Multinationals Going Their Own Way - or MGTOW ;-) so TSMC started doing their own R&D. This is a large part of why they are currently ahead of everyone else.
https://www.sunypoly.edu/research/albany-nanotech-complex.ht...
The NanoTech Center currently is primarily a boutique R&D center for Global Foundries + IBM with other specific companies invited in as needed.
But there is a "convergent evolution" to this kind of work because the laws of physics are not arbitrary nor are random directions of successful R&D possible - it's a constrained problem so even in independence, solutions will be similar because the physics problems that arise are the same and thus the solutions are going to "rhyme". TSMC is already doing something similar but the process design (the only part patentable) is different.
The problem was trying to turn those inventions into something they could sell. Chip tech was sold to whoever they could.
Doing some back of the napkin math on the remaining business, by revenue it is roughly 45% consulting, 40% software, and 15% hardware. IP revenue represents 1% ($626M) of its revenue. [2]
What does it actually do? At a high level, help companies deal with the complexities created in a world of heterogeneous infrastructure (data and AI across environments, common management/security, automation, etc.).
[1] https://techcrunch.com/2021/11/04/kyndryl-officially-launche...
[2] https://www.ibm.com/investor/att/pdf/IBM_Annual_Report_2020....
Disclaimer: I'm an IBM employee, but my opinions are my own and I'm just using public data.
How soon could it be in production?