The term nanotechnology, which enjoys wide public use, is a concept that covers a wide range of developments in the field of nanoscale electronic components, along with its decades-old application in nanocarbon-black particles or silicates manufactured using the sol-gel process. With application of nanotechnology, electronic industry is benefit a lot.
Nanowire and nanotube arrays for EMI shielding
Composite materials have special properties with superior thermal, electrical and mechanical properties, metal and semiconductor nanowires as tags for bioassays, etc. Carbon nanomaterials provide special advantages in shielding and absorbing electromagnetic radiation, field emission, thermal conductivity, hydrogen storage, adsorption, catalyzing, etc.
Chemical gas sensing
After modified with nanomaterials such as carbon nanotubes or semiconductors, sensors with high sensitivity and selectivity can be made, such as humidity sensors, solid state resistive sensors, combustible gas sensors, etc.
Electronics and related fields
Scanning probes and scanning microscopy standards, storage media and Terabit memory, ?at panel displays, vacuum microelectronics for harsh environments, field emission cathodes, photonic band gap materials and devices, etc.
Field effect transistor
An interesting geometry for such studies is the field effect transistor, in which a semiconducting nanotube serves as the channel, the conductivity of which is controlled by a capacitively coupled gate electrode. Due to the exceptional electronic properties of carbon nanotubes (in particular, the very long carrier mean free path, the high carrier velocity and the high current density capability), aggressively scaled carbon nanotube field effect transistors (CNTFETs) are among the best performing nano-scale FETs.
Semiconductor polishing
As the semiconductor industry continues to move forward to smaller chip architecture, the need for advanced CMP slurries becomes a requirement that cannot be met by the slurries provided in the past. Currently fumed silica and colloidal silica are being used. Both of these are nanoparticles used for several decades already. New types are being developed now including rare earth metal compound and alumina dispersions which are on the forefront of providing high planarity surfaces and efficient removal rates. The unique surface chemistry of these nanomaterials allows formulation of highly concentrated dispersions at a variety of pH.
Conclusion
Moving nanomaterials into products and the commercial arena is now the objective of major chemical and materials ?rms. This is occurring through internal programs and through investments in small technology companies to ?nd materials, processes, and applications.
Application nanomaterial
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Nano-material
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Application field
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Advantages
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Seamless tubes of graphite sheets
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EMI shielding
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High efficiency
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EMI shielding
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High efficiency
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Modified electrode, chemical sensor
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High sensitivity and selectivity
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Probe
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Super-thin tip
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Field effect transistor
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Excellent field emission property
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Chemical sensor
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High sensitivity and selectivity
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Semiconductor polishing
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High planarity surfaces and efficient removal rates
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