Nanowire transistor escapes the Boltzmann tyranny

4 days ago · Also known as the Boltzmann tyranny, it’s limited to 60 millivolts per decade at best, imposing a fundamental lower limit on the operating voltage of CMOS and hence on the …

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What is 'Boltzmann tyranny'?

The problem they're tackling is what's known as "Boltzmann tyranny." It refers to the fundamental limit to how little voltage is required to switch a silicon transistor on and off at room temperature, where if you crank the voltage down too far, the transistor loses its switching ability. ...

Why does Boltzmann tyranny require a minimum voltage?

The steeper the slope, the less voltage is needed to turn on the transistor and the greater its energy efficiency. But because of how electrons move across an energy barrier, Boltzmann tyranny requires a certain minimum voltage to switch the transistor at room temperature. ...

Are low-subthreshold swing transistors a tyranny?

The study of such devices encompasses low-subthreshold swing (SS) transistors and neuromorphic devices. However, conventional field-effect transistors (FETs) face the inherent limitation of the “Boltzmann tyranny”, which restricts SS to 60 mV decade –1 at room temperature. ...

Could nanoscale transistors make electronics more efficient?

ScienceDaily, 4 November 2024. <www.sciencedaily.com / releases / 2024 / 11 / 241104112321.htm>. Massachusetts Institute of Technology. (2024, November 4). Nanoscale transistors could enable more efficient electronics. ...

What is a nanowire based device?

Nanowire-based devices can potentially be of use in a variety of electronic applications, from ultrascaled digital circuits to 5G communication networks. However, the devices are typically restricted to low-power applications due to the relatively low electrical conductivity and limited voltage capability of the nanowires. ...

Can transistors bypass the physical limits of silicon?

At that scale, some quantum effects come into play that let the transistors bypass the physical limits of silicon. The scientists designed the transistors to achieve quantum tunneling, where electrons can basically teleport across an insulating barrier layer rather than going over it, letting the transistor switch on with much less voltage. ...