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A transistor is a semiconductor device used to amplify and switch electronic signals. It is made of a solid piece of semiconductor material, with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be much more than the controlling (input) power, the transistor provides amplification of a signal.More information on Transistor can be found here.
ECE 612 Lecture 4: Polysilicon Gates/QM Effects
out of 5 stars
12 Sep 2008 | | Contributor(s):: Mark Lundstrom
Outline: 1) Review, 2) Workfunctionof poly gates,3) CV with poly depletion,4) Quantum mechanics and VT,5) Quantum mechanics and C,6) Summary.
ECE 612 Introductory Lecture
10 Sep 2008 | | Contributor(s):: Mark Lundstrom
Lecture 3A: The Ballistic MOSFET
The IV characteristic of the ballistic MOSFET is formally derived. When Boltzmann statistics are assumed, the model developed here reduces to the one presented in Lecture 2. There is no new physics in this lecture - just a proper mathematical derivation of the approach that was developed...
Lecture 3B: The Ballistic MOSFET
This lecture is a continuation of part 3A. After discussion some bandstructure considerations, it describes how 2D and subthreshold electrostatics are included in the ballistic model.
Physics of Nanoscale Transistors: An Introduction to Electronics from the Bottom Up
Transistor scaling has pushed channel lengths to the nanometer regime, and advances in nanoscience have opened up many new possibilities for devices. To realize these opportunities, our traditional understanding of electronic devices needs to be complemented with a new perspective that begins...
ECE 612 Lecture 3: MOS Capacitors
09 Sep 2008 | | Contributor(s):: Mark Lundstrom
Outline: 1) Short review,2) Gate voltage / surface potential relation,3) The flatbandvoltage,4) MOS capacitance vs. voltage, 5) Gate voltage and inversion layer charge.
ECE 612 Lecture 2: 1D MOS Electrostatics II
Outline: 1) Review,2) ‘Exact’ solution (bulk), 3) Approximate solution (bulk), 4) Approximate solution (ultra-thin body), 5) Summary.
ECE 612 Lecture 1: 1D MOS Electrostatics I
Outline: 1) Review of some fundamentals,2) Identify next steps.
Lecture 2: Elementary Theory of the Nanoscale MOSFET
08 Sep 2008 | | Contributor(s):: Mark Lundstrom
A very simple (actually overly simple) treatment of the nanoscale MOSFET. This lecture conveys the essence of the approach using only simple mathematics. It sets the stage for the subsequent lectures.
Lecture 4: Scattering in Nanoscale MOSFETs
No MOSFET is ever fully ballistic - there is always some carrier scattering. Scattering makes the problem complicated and requires detailed numerical simulations to treat properly. My objective in this lecture is to present a simple, physical picture that describes the essence of the problem and...
Lecture 5: Application to State-of-the-Art FETs
The previous lessons may seem a bit abstract and mathematical. To see how this all works, we examine measured data and show how the theory presented in the previous lessons help us understand the operation of modern FETs.
ECE 495N Lecture 2: Quantum of Conductance
02 Sep 2008 | | Contributor(s):: Supriyo Datta
ECE 495N Lecture 1: What Makes Current Flow?
28 Aug 2008 | | Contributor(s):: Supriyo Datta
Introduction: Physics of Nanoscale MOSFETs
26 Aug 2008 | | Contributor(s):: Mark Lundstrom
Lecture 1: Review of MOSFET Fundamentals
A quick review of the traditional theory of the MOSFET along with a review of key device performance metrics. A short discussion of the limits of the traditional (drift-diffusion) approach and the meaning of ballistic transport is also included.
The Effect of Physical Geometry on the Frequency Response of Carbon Nanotube Field-Effect Transistors
03 Aug 2007 | | Contributor(s):: Dave Lyzenga
In order for carbon nanotube (CNT) electrical devices to be fabricated, it is necessary to obtain modifiable operation characteristics. Developing parametric equations to achieve this controllability in the vertical field-effect transistor (FET) design is an important first step toward...