Which mechanism limits the effectiveness of electron tunneling transistors at very high frequencies?

💡 Explanation

When tunneling occurs, the quantum capacitance charging delay limits performance because it takes time to charge the quantum capacitance associated with the tunneling barrier, affecting the switching speed. Therefore quantum capacitance charging is the limiting factor, rather than noise, electromigration or surface scattering which are frequency-independent.

• Which mechanism reduces the flow rate when honey is pumped under high shear constraints?
• Carbon monoxide poisoning impairs cellular respiration because disrupting which mechanism?
• Which mechanism limits the maximum achievable cooling temperature in thermoelectric molecular coolers?
• Which consequence results when antenna impedance mismatch occurs during radio wave propagation?
• Which consequence occurs when spatially separated entangled photons decohere?
• Which outcome arises from rapid isentropic expansion in a cloud chamber containing supersaturated alcohol vapor?