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

Worked Examples for Carrier Statistics (advanced)

15 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck

Two worked out examples based on Fermi-Dirac Vs Maxwell-Boltzmann statistics and temperature effects are presented.

ABACUS Exercise: Bandstructure – Kronig-Penney Model and Tight-Binding Exercise

20 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of this exercise is to start with the simple Kronig-Penney model and understand formations of bands and gaps in the dispersion relation that describes the motion of carriers in 1D periodic potentials. The second exercise examines the behavior of the bands at the Brillouin zone …

ABACUS Exercise: Carriers Distribution vs. Energy

19 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of this problem is to teach the students how the occupancy function changes with temperature, therefore affecting the population of available energy states in the conduction and valence bands.

ABACUS Exercise: Conductivity and Carrier Concentration

19 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of the first problem is to teach the students how to calculate carrier conductivity in a bulk semiconductor material. The objective of the second problem is to calculate the electron and hole concentrations in a bulk sample for fixed donor and varying acceptor concentration.

ABACUS Exercise: Crystal Lattices and Miler Indices

19 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of these assignments is to teach the students about crystal lattices and Miler indices for planes and directions.

ABACUS Exercise: Light Shining on a Semiconductor

20 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of this exercise is to examine the behavior of semiconductors under illumination with light.

ABACUS: MOSFET - Diffusion Process

07 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The goal of this assignment is to make familiar the students the required doses in the diffusion step of fabrication of semiconductor devices to get certain values of the volume doping densities.

ABACUS: Test for Bandstructure Lab

09 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This is a test that examines ones understanding of electronic structure once he/she has gone through the materials and exercises provided on the nanoHUB as part of the ABACUS Bandstructure topic page and running the Bandstructure Lab.

ABACUS: Test for BJT lab Tool

06 Oct 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck

The objective of this test is to give an idea to a self-learning student 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 …

ABACUS: Test for Carrier Statistics Tool

09 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, 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 …

ABACUS: Test for Crystal Viewer Tool

04 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 …

ABACUS: Test for Drift Diffusion Lab

11 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, 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 …

ABACUS: Test for MOSCAP Tool

14 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, 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 …

ABACUS: Test for MOSFET Tool

17 Oct 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, 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 …

ABACUS: Test for PCPBT 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 …

ABACUS: Test for Periodic Potential Lab

04 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 …

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 …

ACUTE - Bandstructure Assignment

07 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This is assignment that is part of the ACUTE tool-based curricula that guides the students step by step how to implement an empirical pseudopotential method for the bandstructure calculation.

ACUTE - PN Diode Modeling

07 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

In this assignment, starting from an equilibrium Poisson equation solver for pn-diode, students are required to develop a complete 1D drift-diffusion simulator using the lecture materials provided as part of the ACUTE tool-based curricula.

ACUTE - Process Simulation Assignment

28 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This assignment teaches the students the ion implantation process.

Analytical and Numerical Solution of the Double Barrier Problem

28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska

Tunneling is fully quantum-mechanical effect that does not have classical analog. Tunneling has revolutionized surface science by its utilization in scanning tunneling microscopes. In some device applications tunneling is required for the operation of the device (Resonant tunneling diodes, EEPROMs …

AQME Exercise: Bound States – Theoretical Exercise

20 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

The objective of this exercise is to teach the students the theory behind bound states in a quantum well.

AQME: SCHRED Assignment – Quantum Confinement

13 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This assignment teaches the students about quantum confinement in MOS capacitors.

Band Structure Lab Exercise

28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska

Investigations of the electron energy spectra of solids form one of the most active fields of research. Knowledge of band theory is essential for application to specific problems such as Gunn diodes, tunnel diodes, photo-detectors etc. There are several standard methods to compute the band …