Nanoelectromechanical
systems or NEMS are tiny machines/devices integrating electrical and mechanical
functionality on the nanometer scale. Examples of NEMS may include tiny
accelerometers, chemical detectors, tiny cantilever which is a tiny electrical
circuit which is used to measure the deflection of the lever. NEMS are
logically the successors of MEMS (microelectricalmechanical systems). NEMS
integrate transistor-like nanoelectronics with
mechanical actuators, pumps, or motors, and may thereby form physical,
biological, and chemical sensors. Important advantages of NEMS are low mass,
high mechanical resonance frequencies, potentially large quantum mechanical
effects such as zero point
motion, and a high surface-to-volume ratio useful for surface-based sensing
mechanisms. In NEMS the mechanical properties of the
carbon nanotubes & graphene are integrated to get the robustness of carbon-based
NEMS.
According to a new market research
report by MarketsandMarkets, the global NEMS market is expected
to reach $108.88 million by 2022, at an estimated CAGR of 29.69% from 2012 to
2022. The report describes the global NEMS market on the basis of
applications, products, components, materials and geography. The applications
includes STM/AFM, medical, gas/flow sensor, RF functionalities. The NEMS
products described in the report are switches and cantilevers. The materials
used in the NEMS products are Graphene, ZnO, SiC, GaN, SiO2. The components that
are integrated to form NEMS products are nanotubes, nanowires, and nanofilms. Furthermore,
the market is forecasted using both bottoms-up and top-down approaches.
ADVANTAGES OF NEMS:
1.
High resonating frequency.
2.
Low energy consumption.
3.
Size reduction
4.
Multiple frequencies on a single
chip.
5.
Cost reduction by IC reduction.
NEMS extends the concept
of miniaturization towards the level of atoms and molecules; hence NEMS have
their core movement at the nanometer level at or below 100nm. It is expected
that in the future NEMS will be preferred over MEMS for the high frequency applications
like high frequency resonator and ultrasensitive sensors. This is because NEMS
have smaller mass, higher electrical efficiency, high resonating frequency (which
is in the range of GHz) and higher surface area to volume ratio. In the
NEMS, the mechanical components are combined with electronic properties at
nanoscale to develop devices which are capable of performing unconventional tasks.
NEMS have been witnessed as a fundamental breakthrough in designing and
manufacturing industry as tiny mechanical devices are combined with the
electronic circuitry using various nano fabrication techniques.
The market research report
on NEMS global market describes the market trends, drivers, and challenges of
NEMS market and forecasts the NEMS market from 2012 to 2022, based on the
various NEMS applications. The report can be referred here:
http://www.sbwire.com/press-releases/nanoelectromechanical-system-nems-market-to-reach-10888-million-by-2022-271626.htm
http://www.sbwire.com/press-releases/nanoelectromechanical-system-nems-market-to-reach-10888-million-by-2022-271626.htm







