IBM has demonstrated a nine nanometer (9nm) carbon nanotube transistor (CNT) — the smallest CNT ever made, and significantly smaller than any commercial silicon transistor.
At 9nm, IBM’s transistor is also smaller than the physical limit of silicon transistors, which is around 11nm.
Beyond its diminutive size, the 9nm CNT is capable of switching at very low voltages (0.5V), thus consuming less power than its silicon counterparts — but it can also carry four times as much current, meaning...
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