How Quantum-Mechanical Space-Quantization is Implemented in Schred, Drift-Diffusion (SILVACO ATLAS) and Particle-Based Device Simulators (Quamc2D)
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27 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska
This brief presentation outlines how one can implement quantum-mechanical space quantization effects exactly (using Schred) and approximately in drift-diffusion (using SILVACO), as well as particle-based device simulators (using Quamc2D).
MOSCAP - Theoretical Exercises 1
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02 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
Periodic Potentials and Bandstructure: an Exercise
02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise teaches the students that in the case of strong coupling between the neighboring wells in square and Coulomb periodic potential wells electrons start to behave as free electrons and the gaps that open at the Brillouin zone boundaries become smaller and smaller (thus recovering the...
ABACUS: Test for PN Junction Lab
05 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
The objective of this test is to give an idea to a self-learning students or to instructors in the case this test is used in a classroom the level of understanding of this topic when students have gone through the learning material, worked exercises and have completed the assignments and the...
Alloy Disorder Scattering
11 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska
This set of slides describes Alloy disorder scattering.
Tunneling Through Triangular Barrier: an Exercise for PCPBT
23 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise teaches the users that a very good result can be obtained when the triangular barrier is approximated with 11 segment piece-wise constant potential barrier steps. www.eas.asu.edu/~vasilesk NSF
Verification of the Validity of the MOSFET Tool
10 Oct 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Output characteristics of a bulk MOSFET are computed using MOSFET lab and compared with an analytical model based on Bulk-Charge theory. Parasitic resistance is used as a fitting parameter in the analytical model. MATLAB script used for verification is also available for download.
Slides: WKB Approximation Applications
09 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF
Exercise: Crystal Lattices
29 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise helps the student better understand various types of crystal lattices, in particular diamond and zinc-blende and also helps in better understanding of the miller indicies. The results to some of these problems can be easily arrived at by using the crystal viewer...
Harmonic Oscillator: an Exercise
Exercise: Density of States Function Calculation
06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
These exercises teach the students how to derive the DOS function for a 2D and a 1D system and to calculate the energy-dependent effective mass for non-parabolic bands.www.eas.asu.edu/~vasileskNSF
Computational Electronics HW - Linearization of Poisson Equation
11 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
BJT - Simulation Exercise
03 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This simulation exercise teaches the students the operation of BJT transistor, what is current gain and how one extracts current gain from the Gummel plot. It also provides output device characteristics from which students have to extract the Early voltage. Furthermore, it makes the students...
Slides on Introductory Concepts in Quantum Mechanics
07 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, David K. Ferry, Gerhard Klimeck
particle wave duality, quantization of energy
Band Structure Calculation: General Considerations
17 May 2010 | Teaching Materials | Contributor(s): Dragica Vasileska
This set of slides explains to the users the concept of valence vs. core electrons, the implications of the adiabatic approximation on the separation of the total Hamiltonian of the system and the mean-field approximation used in ab initio bandstructure approaches. It then gives systematic...
Reading Material: What is Quantum Mechanics?
08 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
PN Junction Lab Exercise: Non-Idealities in a PN Diode
23 Jun 2009 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise explores the behavior of a non-ideal diode in which the generation-recombination mechanisms in the depletion region, high levels of injection, and series resistance effects can significantly affect the diode behavior.
From 1 well to 2 wells to 5 wells to periodic potentials: an Exercise
This exercise demonstrates that the interaction between the wells lifts the degeneracy of the quasi-bound states and if in the limit we have infinite periodic potential it leads to formation of energy bands. Notice that when the interaction is less strong the energy levels are more sharp and...
Towards Quantum Mechanics
07 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska
This tutorial gives an overview of the development of science and how quantum-mechanics is starting to get into our every day life. These slides have been adopted from Motti Heiblum original presentation.Motti Heiblumwww.eas.asu.edu/~vasileskNSF
Reading Material: Landauer's formula
08 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska
Exercise for MOSFET Lab: DIBL Effect
30 Jul 2009 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
In this exercise students are required to examine the drain induced barrier lowering (DIBL) effect in short channel MOSFET devices.
Crystal Viewer Lab Exercise
28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska
A central problem in the investigation of material properties involves the examination of the underlying blocks that aggregate to form macroscopic bodies. These underlying blocs own a definite arrangement that is repeated in three dimensions to give the crystal structure. We will try to explore...
Exercise: Basic Operation of n-Channel SOI Device
This exercise teaches the students the basic operation of n-channel SOI devices.NSF
Verification of the Validity of the BJT Tool
22 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
A pnp BJT in Common-Base configuration is analyzed both analytically and numerically using BJT Lab. DC current gain and Output characteristics are computed.MATLAB script used is also available for download.
Manual for the Generalized Bulk Monte Carlo Tool
23 Jun 2011 | Teaching Materials | Contributor(s): Raghuraj Hathwar, Dragica Vasileska
This manual describes the physics implemented behind the generalized bulk Monte Carlo tool.