IBM stacks up a sub-nanometer chip future

IBM has developed a sub-nanometer (nm) chip technology it says could be used to produce commercial chips within five years, and has mapped a path to 0.1 nm. Big Blue claims its new process node can cram nearly 100 billion transistors onto a silicon die the size of a fingernail, almost double the density of the 2 nm technology it unveiled back in 2021. The new process as disclosed is actually for 0.7 nm or 7 Angstroms (7A), compared with the cutting-edge manufacturing nodes now being prepared for