Tags: devices

Description

On June 30, 1948, AT&T Bell Labs unveiled the transitor to the world, creating a spark of explosive economic growth that would lead into the Information Age. William Shockley led a team of researchers, including Walter Brattain and John Bardeen, who invented the device. Like the existing triode vacuum tube device, the transistor could amplify signals and switch currents on and off, but the transistor was smaller, cheaper, and more efficient. Moreover, it could be integrated with millions of other transistors onto a single chip, creating the integrated circuit at the heart of modern computers.

Today, most transistors are being manufactured with a minimum feature size of 60-90nm--roughly 200-300 atoms. As the push continues to make devices even smaller, researchers must account for quantum mechanical effects in the device behavior. With fewer and fewer atoms, the positions of impurities and other irregularities begin to matter, and device reliability becomes an issue. So rather than shrink existing devices, many researchers are working on entirely new devices, based on carbon nanotubes, spintronics, molecular conduction, and other nanotechnologies.

Learn more about transistors from the many resources on this site, listed below. Use our simulation tools to simulate performance characteristics for your own devices.

Online Presentations (221-240 of 249)

  1. Designing Nanocomposite Materials for Solid-State Energy Conversion

    28 Dec 2005 | Online Presentations | Contributor(s): Timothy D. Sands

    New materials will be necessary to break through today's performance envelopes for solid-state energy conversion devices ranging from LED-based solid-state white lamps to thermoelectric...

    http://nanohub.org/resources/832

  2. Atomic Force Microscopy

    29 Nov 2005 | Online Presentations | Contributor(s): Arvind Raman

    Atomic Force Microscopy (AFM) is an indispensible tool in nano science for the fabrication, metrology, manipulation, and property characterization of nanostructures. This tutorial reviews some of...

    http://nanohub.org/resources/520

  3. First Principles-based Atomistic and Mesoscale Modeling of Materials

    16 Nov 2005 | Online Presentations | Contributor(s): Alejandro Strachan

    This tutorial will describe some of the most powerful and widely used techniques for materials modeling including i) first principles quantum mechanics (QM), ii) large-scale molecular dynamics...

    http://nanohub.org/resources/434

  4. Designing Nanocomposite Thermoelectric Materials

    08 Nov 2005 | Online Presentations | Contributor(s): Timothy D. Sands

    This tutorial reviews recent strategies for designing high-ZT nanostructured materials, including superlattices, embedded quantum dots, and nanowire composites. The tutorial highlights the...

    http://nanohub.org/resources/383

  5. Bandstructure in Nanoelectronics

    01 Nov 2005 | Online Presentations | Contributor(s): Gerhard Klimeck

    This presentation will highlight, for nanoelectronic device examples, how the effective mass approximation breaks down and why the quantum mechanical nature of the atomically resolved material...

    http://nanohub.org/resources/381

  6. An Electrical Engineering Perspective on Molecular Electronics

    26 Oct 2005 | Online Presentations | Contributor(s): Mark Lundstrom

    After forty years of advances in integrated circuit technology, microelectronics is undergoing a transformation to nanoelectronics. Modern day MOSFETs now have channel lengths that are less than...

    http://nanohub.org/resources/513

  7. Wireless Integrated MicroSystems (WIMS): Coming Revolution in the Gathering of Information

    25 Oct 2005 | Online Presentations | Contributor(s): Kensall D. Wise

    Wireless integrated microsystems promise to become pervasive during the coming decade in applications ranging from health care and environmental monitoring to homeland security. Merging low-power...

    http://nanohub.org/resources/190

  8. Simple Theory of the Ballistic MOSFET

    19 Oct 2005 | Online Presentations | Contributor(s): Mark Lundstrom

    Silicon nanoelectronics has become silicon nanoelectronics, but we still analyze, design, and think about MOSFETs in more or less in the same way that we did 30 years ago. In this talk, I...

    http://nanohub.org/resources/491

  9. Laser Cooling of Solids

    13 Oct 2005 | Online Presentations | Contributor(s): Massoud Kaviany

    Enhanced laser cooling of ion doped nanocrystalline powders (e.g., Yb3+: Y2O3) can be achieved by enhancing the anti-Stokes, off-resonance absorption, which is proportional to the three...

    http://nanohub.org/resources/195

  10. Semiconductor Interfaces at the Nanoscale

    13 Oct 2005 | Online Presentations | Contributor(s): David Janes

    The trend in downscaling of electronic devices and the need to add functionalities such as sensing and nonvolatile memory to existing circuitry dictate that new approaches be developed for device...

    http://nanohub.org/resources/196

  11. Plasmonic Nanophotonics: Coupling Light to Nanostructure via Plasmons

    04 Oct 2005 | Online Presentations | Contributor(s): Vladimir M. Shalaev

    The photon is the ultimate unit of information because it packages data in a signal of zero mass and has unmatched speed. The power of light is driving the photonicrevolution, and information...

    http://nanohub.org/resources/194

  12. On the Reliability of Micro-Electronic Devices: An Introductory Lecture on Negative Bias Temperature Instability

    03 Oct 2005 | Online Presentations | Contributor(s): Muhammad A. Alam

    In 1930s Bell Labs scientists chose to focus on Siand Ge, rather than better known semiconductors like Ag2S and Cu2S, mostly because of their reliable performance. Their choice was rewarded with...

    http://nanohub.org/resources/193

  13. Modeling and Simulation of Sub-Micron Thermal Transport

    27 Sep 2005 | Online Presentations | Contributor(s): Jayathi Murthy

    In recent years, there has been increasing interest in understanding thermal phenomena at the sub-micron scale. Applications include the thermal performance of microelectronic devices,...

    http://nanohub.org/resources/192

  14. Quantum Dots

    26 Sep 2005 | Online Presentations | Contributor(s): Gerhard Klimeck

    Quantum Dots are man-made artificial atoms that confine electrons to a small space. As such, they have atomic-like behavior and enable the study of quantum mechanical effects on a length scale...

    http://nanohub.org/resources/189

  15. Parallel Computing for Realistic Nanoelectronic Simulations

    26 Sep 2005 | Online Presentations | Contributor(s): Gerhard Klimeck

    Typical modeling and simulation efforts directed towards the understanding of electron transport at the nanometer scale utilize single workstations as computational engines. Growing understanding...

    http://nanohub.org/resources/191

  16. Towards Molecular Electronic Circuitry: Selective Deposition of Metals on Patterned ...

    01 Sep 2005 | Online Presentations | Contributor(s): Amy Walker

    We have developed a robust method by which to construct complex two- and three- dimensional structures based on controlling interfacial chemistry. This work has important applications in...

    http://nanohub.org/resources/466

  17. Top-Metal/Molecular Monolayer Interactions and Final Device Performance

    01 Sep 2005 | Online Presentations | Contributor(s): Curt Richter

    The top-metal/molecular-monolayer interface is of critical importance in the formation of molecular electronic (ME) devices and test structures. I will discuss two experimental studies of ME...

    http://nanohub.org/resources/467

  18. Tuning of Electronic Properties of Organic Semiconductors...

    01 Sep 2005 | Online Presentations | Contributor(s): Karin Potje-Kamloth

    Intrinsic conducting polymers are key components in organic electronic devices. These materials are also known to be sensitive toward a variety of gases and vapors, which can be exploited by...

    http://nanohub.org/resources/529

  19. Numerical Aspects of NEGF: The Recursive Green Function Algorithm

    20 Aug 2005 | Online Presentations | Contributor(s): Gerhard Klimeck

    Numerical Aspects of NEGF: The Recursive Green Function Algorithm

    http://nanohub.org/resources/165

  20. Resonant Tunneling of Electrons: Application of Electromagnetic Concepts to Quantum Mechanic Phenomena

    19 Aug 2005 | Online Presentations | Contributor(s): Greg H. Huff, Kevin Hietpas

    http://nanohub.org/resources/388