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.

All Categories (181-200 of 316)

  1. ECE 606 Lecture 11: Equilibrium Statistics

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Law of mass-action & intrinsic concentration Statistics of donors and acceptor levels Conclusion R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on Solid...

    http://nanohub.org/resources/5803

  2. ECE 606 Lecture 10: Additional Information

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Potential, field, and charge E-k diagram vs. band-diagram Basic concepts of donors and acceptors Conclusion R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on...

    http://nanohub.org/resources/5801

  3. ECE 606 Lecture 13a: Fermi Level Differences for Metals and Semiconductors

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Short chalkboard lecture on Fermi level and band diagram differences for metals and semiconductors.

    http://nanohub.org/resources/6288

  4. ECE 606 Lecture 9: Fermi-Dirac Statistics

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Rules of filling electronic states Derivation of Fermi-Dirac Statistics: three techniques Intrinsic carrier concentration Conclusion R. F. Pierret, "Advanced Semiconductor...

    http://nanohub.org/resources/5785

  5. ECE 606 Lecture 8: Density of States

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Calculation of density of states Density of states for specific materials Characterization of Effective Mass Conclusions R. F. Pierret, "Advanced Semiconductor Fundamentals",...

    http://nanohub.org/resources/5784

  6. ECE 606 Lecture 7: Energy Bands in Real Crystals

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: E-k diagram/constant energy surfaces in 3D solids Characterization of E-k diagram: Bandgap Characterization of E-k diagram: Effective Mass Conclusions R. F. Pierret, "Advanced...

    http://nanohub.org/resources/5782

  7. ECE 606 Lecture 5: Energy Bands

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Schrodinger equation in periodic U(x) Bloch theorem Band structure Properties of electronic bands Conclusions R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series...

    http://nanohub.org/resources/5758

  8. ECE 606 Lecture 6: Energy Bands (continued)

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Properties of electronic bands E-k diagram and constant energy surfaces Conclusions R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on Solid State Devices,...

    http://nanohub.org/resources/5780

  9. ECE 606 Lecture 4: Solution of Schrodinger Equation

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Time-independent Schrodinger Equation Analytical solution of toy problems Bound vs. tunneling states Conclusions Additional Notes: Numerical solution of Schrodinger Equation R....

    http://nanohub.org/resources/5756

  10. ECE 606 Lecture 3: Elements of Quantum Mechanics

    28 Jan 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Why do we need quantum physics Quantum concepts Formulation of quantum mechanics Conclusions R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on Solid State...

    http://nanohub.org/resources/5754

  11. ECE 606 Lecture 2: Geometry of Periodic Crystals

    28 Jan 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Volume & surface issues for BCC, FCC, Cubic lattices Important material systems Miller indices Conclusions Helpful software tool: Crystal Viewer in the ABACUS tool suite. R....

    http://nanohub.org/resources/5752

  12. ECE 606 Lecture 1: Introduction

    28 Jan 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline: Course information Current flow in semiconductors Types of material systems Classification of crystals

    http://nanohub.org/resources/5750

  13. Illinois ECE 440 Solid State Electronic Devices, Lecture 7: Temperature Dependence of Carrier Concentrations

    30 Dec 2008 | Online Presentations | Contributor(s): Eric Pop

    University of Illinois at Urbana-Champaign ECE 440: Solid State Electronic Devices

    http://nanohub.org/resources/6090

  14. Illinois ECE 440 Solid State Electronic Devices, Lecture 6: Doping, Fermi Level, Density of States

    04 Dec 2008 | Online Presentations | Contributor(s): Eric Pop, Umair Irfan

    University of Illinois at Urbana-Champaign ECE 440: Solid State Electronic Devices

    http://nanohub.org/resources/6000

  15. Illinois ECE 440 Solid State Electronic Devices, Lecture 1 Introduction

    26 Nov 2008 | Online Presentations | Contributor(s): Eric Pop

    Introduction to Solid State Electronic Devices University of Illinois at Urbana-Champaign ECE 440: Solid State Electronic Devices

    http://nanohub.org/resources/5950

  16. ECE 606 Lecture 32: MOS Electrostatics I

    19 Nov 2008 | Online Presentations | Contributor(s): Muhammad A. Alam

    http://nanohub.org/resources/5894

  17. ECE 606 Lecture 26: Schottky Diode II

    19 Nov 2008 | Online Presentations | Contributor(s): Muhammad A. Alam

    http://nanohub.org/resources/5830

  18. ECE 612 Lecture 20: Broad Overview of Reliability of Semiconductor MOSFET

    14 Nov 2008 | Online Presentations | Contributor(s): Muhammad A. Alam

    Guest lecturer: Muhammad A. Alam.

    http://nanohub.org/resources/5861

  19. ECE 606: Principles of Semiconductor Devices

    12 Nov 2008 | Courses | Contributor(s): Muhammad A. Alam

    In the last 50 years, solid state devices like transistors have evolved from an interesting laboratory experiment to a technology with applications in all aspects of modern life. Making...

    http://nanohub.org/resources/5749

  20. PRISM Seminar Series

    05 Nov 2008 | Series | Contributor(s): Jayathi Murthy, Alejandro Strachan

    Welcome to the PRISM Seminar Series. PRIMS: NNSA Center for Prediction of Reliability, Integrity and Survivability of Microsystems, is a university center funded by the Department of Energy's...

    http://nanohub.org/resources/5699