Quantum tunnelling has already become a problem in most computer components. NAND flash was the first in maybe 2015 to start reporting seeing issues?
Effects are moderately visible and have to be counteracted at 5nm. I heard some rumours about 7nm, but cannot confirm any countermeasures were taken to avoid quantum effects.
It should be noted that "3nm" is now purely for commercial reasons and has no relationship to the size of transistors on board.
Effects are moderately visible and have to be counteracted at 5nm. I heard some rumours about 7nm, but cannot confirm any countermeasures were taken to avoid quantum effects.
It should be noted that "3nm" is now purely for commercial reasons and has no relationship to the size of transistors on board.