Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > "Green Chips" for Tomorrow's Computers

Abstract:
JARA-FIT scientists achieve breakthrough in design of computer chips

"Green Chips" for Tomorrow's Computers

Aachen/Jülich | Posted on April 19th, 2010

An innovative concept from scientists of the Jülich-Aachen Research Alliance (JARA) will pave the way for designing chips for future computers. For the generation after next of computer chips this development means higher computing power with significantly lower energy requirements - an important step for "green computing".

A working group headed by Professor Rainer Waser from Forschungszentrum Jülich and RWTH Aachen University has developed a novel switching concept and the related technology for so-called memristor chips. With their research findings, the scientists are preparing for a paradigm shift in the architecture of computer chips. The article presenting these findings is being published today in the internationally respected journal Nature Materials with the title "Complementary resistive switches for passive nanocrossbar memories".

It has been known for few years that memristor chips may play an important part in alternative architectures for future computers. Memristive cells have the special property that their resistance can be programmed (resistor) and subsequently remains stored (memory). However, it has so far not been possible to avoid a superimposition of information between adjacent cells in structured arrays when data is written onto such a structure - due to so-called sneak paths of the electrical current - without each cell being connected to its own transistor. The additional design effort involved limits the cell density of present arrays and consequently also their performance. Furthermore, it makes chip production much more expensive.

The research group achieved a breakthrough with respect to the fundamental problem of crosstalk between adjacent memristive cells. A member of Waser's group from RWTH Aachen University, Eike Linn, and his colleagues Roland Rosezin and Carsten Kügeler, both from Forschungszentrum Jülich, solved this challenge by developing a completely new switching concept. This concept is based on the antiserial switching of two memristive cells. Together, these cells form a novel unit, which the scientists termed a CRS cell (complementary resistive switch). No undesirable superimposition of information takes place between CRS cells.

Apart from avoiding the sneak paths, the passive arrays - fixed arrays of the new CRS cells - provide the advantage of particularly energy-efficient operation since such chip architecture can locally combine computing and memory areas. A large proportion of the energy required by today's computers arises from the classical von Neumann architecture, in which memory and computing areas are strictly segregated. The necessary data transport between the functional areas thus leads to high energy consumption.

With respect to performance, simulations show that in the technology of the next but one generation (transistor gate length 22 nanometres) arrays of the size of up to 100 million bits can be constructed using CRS cell arrays. In comparison, similar structures in present-day computers have a size of just one thousand bits on the lowest level and require a transistor for each cell in order to avoid the sneak path problem.

Publication in Nature Materials: dx.doi.org/10.1038/NMAT2748

####

For more information, please click here

Contacts:
Prof. Dr.-Ing. Rainer Waser
Director at the Institute of Solid State Research, Forschungszentrum Jülich, Germany
Chair of Electronic Materials II, Aachen University of Technology (RWTH), Germany



Christian Schipke
Press officer
Jülich-Aachen Research Alliance (JARA)
Tel.: +49 2461 61 3835
Fax: +49 2461 61 1816
Mobile: +49 160 5322681

Copyright © Jülich-Aachen Research Alliance (JARA)

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

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Academic/Education

SUNY Poly NanoCollege Faculty Member Selected as American Physical Society Fellow: SUNY Poly Associate Professor of Nanoscience Dr. Vincent LaBella Recognized for Significant Technological Innovations that Enable Interactive Learning December 17th, 2014

Nanomedicine expert joins Rice faculty: Gang Bao combines genetic, nano and imaging techniques to fight disease December 17th, 2014

FEI and Oregon Health & Science University Install a Complete Correlative Microscopy Workflow in Newly Built Collaborative Science Facility December 16th, 2014

Student Nanotechnology Laboratories Network Set Up in Iran December 15th, 2014

Chip Technology

Instant-start computers possible with new breakthrough December 19th, 2014

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Stanford team combines logic, memory to build a 'high-rise' chip: Today circuit cards are laid out like single-story towns; Futuristic architecture builds layers of logic and memory into skyscraper chips that would be smaller, faster, cheaper -- and taller December 15th, 2014

Memory Technology

Instant-start computers possible with new breakthrough December 19th, 2014

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

Stanford team combines logic, memory to build a 'high-rise' chip: Today circuit cards are laid out like single-story towns; Futuristic architecture builds layers of logic and memory into skyscraper chips that would be smaller, faster, cheaper -- and taller December 15th, 2014

Graphene layer reads optical information from nanodiamonds electronically: Possible read head for quantum computers December 1st, 2014

Nanoelectronics

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

Defects are perfect in laser-induced graphene: Rice University lab discovers simple way to make material for energy storage, electronics December 10th, 2014

Nanoscale resistors for quantum devices: The electrical characteristics of new thin-film chromium oxide resistors that can be tuned by controlling the oxygen content detailed in the 'Journal of Applied Physics' December 9th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Announcements

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Environment

Nanoparticles Prove Effective in Removing Phosphor from Calcareous Soil December 10th, 2014

Detecting gases wirelessly and cheaply: New sensor can transmit information on hazardous chemicals or food spoilage to a smartphone December 8th, 2014

Nanocatalysts Can Reduce Pollution Caused by Diesel Engines December 4th, 2014

Green meets nano: Scientists at TU Darmstadt create multifunctional nanotubes using nontoxic materials December 3rd, 2014

Energy

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

How does enzymatic pretreatment affect the nanostructure and reaction space of lignocellulosic biomass? December 18th, 2014

Iranian Scientists Use Nanotechnology to Increase Power, Energy of Supercapacitors December 18th, 2014

Lifeboat Foundation gives 2014 Guardian Award to Elon Musk December 16th, 2014

Research partnerships

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Unraveling the light of fireflies December 17th, 2014

Scientists trace nanoparticles from plants to caterpillars: Rice University study examines how nanoparticles behave in food chain December 16th, 2014

FEI and Oregon Health & Science University Install a Complete Correlative Microscopy Workflow in Newly Built Collaborative Science Facility December 16th, 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