Capacitive nano-switches have
been of great interest as replacements for conventional semiconductor switches.
Accurate determination of the pull-in voltage is critical in the design
process. In the present investigation, pull-in instability of nano-switches
made of two parallel plates subjected to electrostatic force is studied. For
this purpose, two parallel rectangular nanoplates with opposite charges are
modeled based on molecular dynamics (MD) technique. Different initial gaps
between nanoplates and its effect on pull-in phenomena are studied in addition
to taking different values of geometrical and physical parameters into account
to evaluate pull-in voltages. Here molecular dynamic simulations as an atomic
interaction approach are employed for modeling of nano-switches in order to
study pull-in instability considering atomic interaction and surface tension.
Boundary conditions and also the van der Waals force are considered as
important parameters to investigate their effects on pull-in voltage values.
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