IBM announces 0.7 nm node prototype chips using nanostack transistors

IBM has reported making prototype chips for the '0.7 nm node'.

The basic building block of their architecture here is the nanostack, which is a limiting case, somewhat 3D-integrated version of their nanosheet 'gate all around' field effect transistors.

The fact that these structures can be made at this scale, reliably and en masse, is just phenomenal.