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Nanoscale Engineering
Nanoscale engineering is that branch of computer education that uses nanoscale for the practice of engineering. The name of this science is derived from nanometre which is a unit of length and is equivalent to a billionth of one meter.
The Techniques of Nanoscale Engineering
A number of techniques are employed for nanoscale engineering. Some of which are:
- Photolithography: This is also known as optical lithography. This technique of nanoscale engineering is used for microfabrication. This involves the removal of selected parts from a thin film. Light is used for transferring a geometric design from something called a photomask to a chemical that is sensitive to light. Thus, with the help of light it produces patterns on chemicals and uses etching to reveal the surface.
- Electron beam lithography: This is somewhat like photolithography. The only difference is that in the place of light it uses electron beams. The electron beams may be broad in the width of nanometers.
- Scanning tunneling microscope: It is another technique of nanoscale engineering which takes part in the scanning of electrical probes on certain surfaces. The images which it derives are on a scale of 0.2 nanometers.
- Molecular self-assembly: Cheap and bulk synthesis of the random sequences of DNA can be done with the help of this. It can make customized proteins or the normal structures of amino acids. In a like wise way DNA strands get linked with other strands to create simple patterns.
Nanoscale engineering or simply nanoengineering is said to be related in a close way with nanotechnology.
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