
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.

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

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.

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.

Verification of the Validity of the MOSCap Tool
11 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Numerical results for Surface Potential Vs Gate Bias are compared with analytical results to prove the validity of MOSCap Lab.

Carrier Statistics Tool Verification
10 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
This test verifies the Carrier Statistics Tool by comparing the numerically computed and analytically extracted, electron and hole carrier densities. The results are close within 2% of margin.

ABACUS: Test for Carrier Statistics Tool
10 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.

Carrier Statistics  Temperature Effects
10 Aug 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Silicon (Si), Germanium (Ge) and GalliumArsenide (GaAs) are commonly used materials for MOS Field Effect Transistor (MOSFET) fabrication. MOSFET structures are commonly doped to achieve the desired switching operation and doping is a critical parameter in MOSFET designing.
The goal in this test is to calculate the temperature range of device operation using Si,Ge and GaAs materials.

Nanotechnology Animation Gallery
22 Apr 2010  Teaching Materials  Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck
Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. Additional animations are also available
Featured nanoHUB tools:
Band Structure Lab.
Carrier Statistics Lab
CNTBands
Crystal Viewer
DriftDiffusion Lab
MOSCap
OMEN Nanowire
PN …