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Nanomanufacturing is a relatively recent branch of manufacturing that represents both a new field of science and also a new marketplace. Research in nanomanufacturing, unlike tradition manufacturing, requires collective effort across typical engineering divides, such as collaboration between mechanical engineers , physicists, biologists ...
Nanotechnology is the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm). At this scale, commonly known as the nanoscale, surface area and quantum mechanical effects become important in describing properties of matter.
The NSF Nanoscale Science and Engineering Center for High-rate Nanomanufacturing (CHN) is one of four nanoscale engineering research centers funded by the NSF. Since 2004, the CHN has carried out over $50 million in research funded by NSF, government agencies, foundations and the private sector.
Two complementary approaches to fabrication of NEMS can be found, the top-down approach and the bottom-up approach. The top-down approach uses the traditional microfabrication methods, i.e. optical, electron-beam lithography and thermal treatments, to manufacture devices. While being limited by the resolution of these methods, it allows a large ...
There are currently many different approaches to building productive nanosystems: including top-down approaches like Patterned atomic layer epitaxy [7] and Diamondoid Mechanosynthesis. [8] There are also bottom-up approaches like DNA Origami and Bis-peptide Synthesis. [9] A fifth step, info/bio/nano convergence, was added later by Roco.
Normal approaches, such as critical dimension-scanning electron microscopy (CD-SEM), to obtain data for pattern quality inspection take too much time and is also labor-intensive. On the other hand, the optical scatterometer-based metrology is a non-invasive technique and has very high throughput due to its larger spot size.
Geometric tolerances are required to achieve the functionality of the assembly. In hybrid integration nanocomponents are placed or assembled on a substrate fabricating functioning nanosystems. In this technique, the most important control parameter is the positional accuracy of the components on the substrate.
A molecular switch is a molecule that can be reversibly shifted between two or more stable states. [1] [page needed] The molecules may be shifted between the states in response to environmental stimuli, such as changes in pH, light, temperature, an electric current, microenvironment, or in the presence of ions [2] and other ligands.
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