
Drift Diffusion Video Demonstration
24 Jun 2014  Animations  Contributor(s): Saumitra Raj Mehrotra, Lynn Zentner, Joseph M. Cychosz
This video shows the use of the DriftDiffusion Lab to simulate drift and diffusion carrier mechanisms in a semiconductor. The examples demonstrated will be helpful to a first time user in understanding the use of the tool.

Calculation of the Matrix Elements for Alloy Scattering
31 Dec 2012  Papers  Contributor(s): Saumitra Raj Mehrotra
An appendix to the paper "Atomistic approach to alloy scattering in Si1−xGex," Appl. Phys. Lett. 98, 173503 (2011).
It involves the generic derivation for the matrix element calculation for the alloy disorder scattering.

BJT Lab Worked Out Problem 2
02 Feb 2011  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra
This sample worked out problem simulated a pnp type BJT in Common Base configuration and calculates AC and DC amplification ratios.

BJT Lab Worked Out Problem 1
01 Feb 2011  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra
This sample worked out problem analyzes the output characteristic curves of an npn BJT transistor and extracts the relevant parameters.

BJT Lab  Amplifier
31 Jan 2011  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra
This real life problem designs and calculates the AC amplification ratio for a CommonEmitter configuration npn type BJT.

Electron Density in a Nanowire
30 Jan 2011  Animations  Contributor(s): Gerhard Klimeck, Saumitra Raj Mehrotra
Electron Density in a circular Silicon nanowire transistor.

MOSCAP CV profiling
05 Jan 2011  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra
This real life problem based on MOSCAP allows one to understand the usage of CV profiling of MOS type of devices.

MOSFET Lab  Scaling
03 Jan 2011  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck, Dragica Vasileska
The concept of device scaling and the need to control short channel effects is used in this real life problem

Crystal Viewer Tool Video Demonstration
14 Dec 2010  Animations  Contributor(s): Saumitra Raj Mehrotra, Lynn Zentner, Joseph M. Cychosz
This video shows the use of the Crystal Viewer Tool to visualize several material/crystal systems. The examples demonstrated will provide a firsttime user with a basic understanding of how the tool works.

MOSFET Worked out problems 1
06 Dec 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck
Short channel effects in a MOSFET due to channel length scaling are highlighted in this worked out problem.

Test for Quantum Dot Lab tool
09 Nov 2010  Teaching Materials  Contributor(s): SungGeun Kim, Saumitra Raj Mehrotra
This test is aimed at selflearning students or instructors who may be engaged in teaching classes related to the quantum dot lab tool.
The level of this test should not be difficult for a student who has gone through "the general tutorial to quantum dots,"
"the introductory tutorial to the quantum dot lab", and completed "the homework assignment for the quantum dot lab tool".

ABACUS: Test for MOSFET Tool
18 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 selflearning 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 challenge problem.

Verification of the Validity of the MOSFET Tool
11 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 BulkCharge theory. Parasitic resistance is used as a fitting parameter in the analytical model. MATLAB script used for verification is also available for download.

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 selflearning 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 challenging problem.

Carrier Statistics Lab Video Demonstration
23 Sep 2010  Animations  Contributor(s): Saumitra Raj Mehrotra
This video shows:
Basic input deck for the tool,
Simulation run of Temperature sweep with constant fermi level,
Simulation run of Temperature sweep with constant doping.

Verification of the Validity of the BJT Tool
24 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
A pnp BJT in CommonBase 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.

MOSCAP Worked out problems (Basic)
19 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
A simple MOSCAP is analyzed under different operation modes namely: Accumulation, near threshold and Inversion.

Drift Diffusion Lab Worked out problems (Drift)
18 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
This sample worked out problem illustrated the concept of mobility. Mobility values are computed for different material and doping levels.

Drift Diffusion  Temperature Sensor
16 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
The fact that mobility of a semiconductor varies with temperature is used to design a temperature sensor in this test.

Worked Examples for Carrier Statistics (basic)
16 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Several worked out examples are presented that illustrate the basic concept of carrier concentration in semiconductors.

ABACUS: Test for MOSCAP Tool
16 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 selflearning 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 challenge problem.

Worked Examples for Carrier Statistics (advanced)
16 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Two worked out examples based on FermiDirac Vs MaxwellBoltzmann statistics and temperature effects are presented.

Drift Diffusion Lab Worked out problems (Diffusion)
16 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
A sample problem is worked out using DriftDiffusion lab. The problem statement deals with the concept of diffusion in semiconductors.

ABACUS: Test for Drift Diffusion Lab
12 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 selflearning 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 challenge problem.

Verification of the Validity of the DriftDiffusion Lab Tool
11 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
DriftDiffusion Lab results are verified analytically. In the first test minority carrier concentration is computed in a semiconductor slab with constant carrier Generation rate (/cm3.s). In the second test bias is applied across a semiconductor slab and current is computed both analytically and numerically.