Which mechanism limits silicon transistor performance at nanometer scales due to orbital overlap?

💡 Explanation

When transistor dimensions reach nanometer scales, the gate oxide thickness decreases, increasing the electric field and probability of quantum tunneling due to increased orbital overlap between the gate and the channel. Therefore, quantum tunneling limits performance, rather than scattering, recombination or dopant variation which are caused by other material and fabrication defects.

• Which outcome occurs when temperature exceeds a ferroelectric crystal's Curie point?
• Which consequence results when parasitic capacitance resonates during transistor switching?
• Which mechanism causes refractive index variations in gradient-index (GRIN) lenses?
• Which mechanism causes dielectric breakdown in high-voltage ceramic capacitors under extreme temperature gradients?
• Which effect occurs when a catalyst saturates in continuous flow reactor?
• Which consequence happens to GPS satellite clocks without relativistic corrections?