Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Norton Medical and Scientific Research & Biotechnology: Transistors the Size of One Atom Created

Abstract:
A transistor made up of only one atom has been made, according to a report published this month in Nature Nanotechnology. Physicists have built a working transistor using just one phosphorus atom accurately placed in a silicon crystal.

Norton Medical and Scientific Research & Biotechnology: Transistors the Size of One Atom Created

Toronto, Canada | Posted on April 13th, 2012

A group of researchers from Australia, US and South Korea have cooperated in creating a single-atom transistor from a single phosphorus atom in silicon.

According to researchers of Purdue University who already did digital simulations of transistors, this technique that utilizes liquid nitrogen-cooled device can only be possible at very low temperatures of negative 391 F.

It is made possible through manipulating single atoms in a scanning tunneling microscope. In the past, silicon's atomic structure has made it hard to engineer circuits using STMs in an atomic scale. What they used is a combination of etching and STM to make a transistor with an accurate location on a silicon surface.

A transistor is the device that can switch and/or amplify an electronic signal, provided that it is connected to an external circuit by at least 3 terminals. Transistors are made of semiconductor materials and are basically crucial in today's lifestyle for they are part of almost every electronic device we have like mobile phones and computers.

Ordinary transistor dimensions are becoming smaller in time owing to the improvements in nanotechnology and materials used. Reducing the size of transistors is a big deal for every device that depends on the number of transistors in them for their efficiency.

The miniaturization was previously described in 1965 by the co-founder of Intel, Gordon Moore. He observed the trend of transistors at that time and formulated what is known today as Moore's Law. It states that the number of transistors in one chip of a computer will double every two years (18-24 months). However, there is a warning that this cannot go on forever and a limit will eventually be reached when the smallest possible transistor is made, which according to Moore's Law should be around 2020. Apparently, we have reached the limit far too early as it is not possible to reduce a transistor already in the size of a single atom.

And just to make sure the idea of how small we are talking about here sinks in, think one ten-billionth of a meter -- that's 100 picometers, the diameter of 1 (one) phosphorus atom.

Their group has proved that it's possible to put a phosphorus atom in silicon with atomic precision.
The team of developers is hoping that their method of manipulation in an atomic scale can be used as founding blocks for quantum computers or devices that use quantum mechanics to represent digital data. Though even with this breakthrough, there is fair warning that quantum computers might not be possible to build.

####

About Norton Medical and Scientific Research & Biotechnology
Norton Medical and Scientific Research & Biotechnology is dedicated to publishing the latest news, mainly on, medical research and biotechnology advancements.

For more information, please click here

Contacts:
1-905-415-0330

Copyright © Norton Medical and Scientific Research & Biotechnology

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Berkeley Lab Researchers Demonstrate First Size-based Chromatography Technique for the Study of Living Cells April 22nd, 2014

PETA science consortium to present hazard testing strategy at nanotoxicology meeting: High tech field ripe for use of sophisticated non-animal testing strategies April 22nd, 2014

Harris & Harris Group Notes the Receipt of Proceeds From the Sale of Molecular Imprints' Semiconductor Business to Canon April 22nd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Chip Technology

Harris & Harris Group Notes the Receipt of Proceeds From the Sale of Molecular Imprints' Semiconductor Business to Canon April 22nd, 2014

Progress made in developing nanoscale electronics: New research directs charges through single molecules April 21st, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Scientists open door to better solar cells, superconductors and hard-drives: Research enhances understanding of materials interfaces April 14th, 2014

Discoveries

Like a hall of mirrors, nanostructures trap photons inside ultrathin solar cells April 22nd, 2014

Nanomaterial Outsmarts Ions April 22nd, 2014

Vacuum Ultraviolet Lamp of the Future Created in Japan: First Solid-State Vacuum UV Phosphor, Described in APL-Materials, Promises Smaller, Safer, Longer Lasting, Low Power Lamps for Industrial Applications April 22nd, 2014

Berkeley Lab Researchers Demonstrate First Size-based Chromatography Technique for the Study of Living Cells April 22nd, 2014

Announcements

Berkeley Lab Researchers Demonstrate First Size-based Chromatography Technique for the Study of Living Cells April 22nd, 2014

PETA science consortium to present hazard testing strategy at nanotoxicology meeting: High tech field ripe for use of sophisticated non-animal testing strategies April 22nd, 2014

Harris & Harris Group Notes the Receipt of Proceeds From the Sale of Molecular Imprints' Semiconductor Business to Canon April 22nd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Research partnerships

University of Waterloo Visits China to Strengthen Bonds With Research Partners April 21st, 2014

Novel stapled peptide nanoparticle combination prevents RSV infection, study finds April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

Scalable CVD process for making 2-D molybdenum diselenide: Rice, NTU scientists unveil CVD production for coveted 2-D semiconductor April 8th, 2014

NanoNews-Digest
The latest news from around the world, FREE







  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE