Worked Examples for Carrier Statistics (basic)
16 Aug 2010 | 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.
Verification of the Validity of the MOSFET Tool
11 Oct 2010 | 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.
Verification of the Validity of the MOSCap Tool
11 Aug 2010 | 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.
Verification of the Validity of the Drift-Diffusion Lab Tool
11 Aug 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Drift-Diffusion 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...
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 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.
Test for Quantum Dot Lab tool
09 Nov 2010 | Teaching Materials | Contributor(s): SungGeun Kim, Saumitra Raj Mehrotra
This test is aimed at self-learning 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...
PN Junction Lab: First-Time User Guide
13 Jun 2009 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Benjamin P Haley
This first-time user guide provides introductory material to PN Junction Lab on nanoHUB. The introduction to PN junctions is followed by a tour of the Rappture interface, which notes key inputs and typical outputs. We discuss the default simulation (what happens if you don't change any inputs,...
OMEN Nanowire: First-Time User Guide
23 Feb 2009 | Teaching Materials | Contributor(s): SungGeun Kim, Benjamin P Haley, Mathieu Luisier, Saumitra Raj Mehrotra, Gerhard Klimeck
This is the first-time user guide for OMEN Nanowire. In addition to showing how the tool operates, it briefly explains what the OMEN Nanowire is, what it can do, and the input and output relationship.NCN@Purdue[1] Sung Dae Suk, et. al., IEDM, 2005, "High Performance 5nm radius Twin Silicon...
Nanowire: First-Time User Guide
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05 May 2008 | Teaching Materials | Contributor(s): Gerhard Klimeck, Saumitra Raj Mehrotra
Nanowire is a simulation tool for silicon nanowire FET's in the nanometer regime (diameter
Nanotechnology Animation Gallery
20 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...
MOSFet: First-Time User Guide
This first-time user guide provides introductory material to MOSFet on nanoHUB. The introduction to MOSFETs and SOI-MOSFETs is followed by a tour of the Rappture interface, which notes key inputs and typical outputs. We discuss the default simulation (what happens if you don't change any inputs,...
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.
MOSFET Lab - Scaling
02 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
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.
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.
Homework Exercise on Fermi-Dirac and Maxwell-Boltzmann Distributions
24 Jan 2008 | Teaching Materials | Contributor(s): Abhijeet Paul, Saumitra Raj Mehrotra, Gerhard Klimeck
The tutorial questions based on Carrier Statistics Lab v1.0 available online at Carrier Statistics Lab. Students are asked to explore the differences between Fermi-Dirac and Maxwell-Boltzmann distributions, compute electron and hole concentrations, study temperature dependences, and study...
Homework Exercise on Drift & Diffusion in Bulk Semiconductors - considerations of lifetime
30 Mar 2008 | Teaching Materials | Contributor(s): Mark Lundstrom, Saumitra Raj Mehrotra
The tutorial questions based on Drift Diffusion Lab v1.0 available online at Drift Diffusion Lab. Students are asked to explore the concepts of Drift, Diffusion, Quasi Fermi Levels, and response to light. Analytical derivations are requested and considerations of lifetime are considered.NCN@Purdue
Homework Exercise on Drift & Diffusion in Bulk Semiconductors
30 Mar 2008 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck
The tutorial questions based on Drift Diffusion Lab v1.0 available online at Drift Diffusion Lab. Students are asked to explore the concepts of Drift, Diffusion, Quasi Fermi Levels, and response to light.NCN@Purdue
Homework Exercise on Bipolar Junction Transistors
30 Mar 2008 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Muhammad A. Alam, Gerhard Klimeck
The tutorial questions are based on the Bipolar Junction Transistor Lab v1.0 available online at Bipolar Junction Transistor Lab. Students are asked to find the emitter efficiency, the base transport factor, current gains, and the Early voltage. Also a qualitative discussion is...
Drift Diffusion Lab: First-Time User Guide
This first-time user guide provides introductory material to Drift Diffusion Lab on nanoHUB. It includes a tour of the Rappture interface, which notes key inputs and typical outputs. It also provides an introduction to concepts of drift and diffusion in a semiconductor. We discuss the default...
Drift Diffusion Lab Worked out problems (Drift)
16 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 Lab Worked out problems (Diffusion)
A sample problem is worked out using Drift-Diffusion lab. The problem statement deals with the concept of diffusion in semiconductors.
Drift Diffusion - Temperature Sensor
13 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.
Carrier Statistics Tool Verification
09 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.
Carrier Statistics Lab: First-Time User Guide
3.0 out of 5 stars
05 Mar 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Gerhard Klimeck, Benjamin P Haley, Saumitra Raj Mehrotra
This first-time user guide is an introduction to the Carrier Statistics Lab . It provides basic definitions, guidance on how to run the tool, and suggested exercises to help users get accustomed to the idea of distribution functions as well as how these functions are used in determining the...