"Single electron devices (SEDs) are cutting-edge nanoscale electronic components that exploit the behavior of individual electrons. These devices manipulate and control single electrons to enable ultra-low-power, high-precision applications in fields such as quantum computing, metrology, and ultra-...
Single Electron Devices for
Logic Applications
Reza M. Rad
UMBC
Based on pages 425-441 of “Nanoelectronics and
Information Technology”, Rainer Waser
, Introduction
¾ Scaling down MOSFETs has been
fundamental in improving the performance
of ULSI circuits
¾ Scaling of MOSFETs is entering the deep
sub 50 nm regime
¾ Quantum mechanical effects are expected
to be effective in these small structure
devices
, Introduction
¾ A new device having operation principles
effective in smaller dimensions which
utilizes quantum-mechanical effects
¾ Single electron devices retain their
scalability even on an atomic scale
¾ Single electron devices will reduce the
power consumption because the number
of electrons transferred from voltage
source to ground is limited
, Single-electron box
¾ A quantum dot connected with two
electrodes
¾ One electrode connected to dot through a
tunneling junction
¾ The other electrode, gate, coupled with
quantum dot via insulator, electron cannot
pass through tunneling
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