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Sunday, February 8, 2015

#319 Atomic-scale technology

Assigning physical dimension to an atom is a tricky proposition. Still, adopting some simplifications, radius of the atoms of elements in the periodic table of elements can be defined both empirically as well through calculations.


Recognizing adopted short cuts, we can assume for the purpose of this discussion that the size of the silicon atom is about 250 picometers or using more familiar unit of length about 0.25 nanometer.


Consider now that the semiconductor films thinner than 10 nm are readily available by means of Molecular Beam Epitaxy (MBE) and the thickness of MOSFET’s channel in ultra-thin body SOI can be controlled down to single nanometers which means that it can be made in the controlled fashion less than 20 atoms thick. Add to it one atom thick graphene which we have learned to form and manipulate pretty effectively and the term "atomic-scale technology" rather than "nanotechnology" seems to more adequately reflect state-of-the-art in semiconductor technology these days.


Posted by Jerzy Ruzyllo at 03:52 PM | Semiconductors | Link is the personal blog of Jerzy Ruzyllo. With over 35 years of experience in academic research and teaching in the area of semiconductor engineering (currently holding position of a Distinguished Professor of Electrical Engineering and Professor of Materials Science and Engineering at Penn State University), he has a unique perspective on the developments in this progress driving technical domain and enjoys blogging about it.

With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.

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