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ABACUS is a collection of tools for the teaching fundamental concepts of semiconductor devices. These concepts typically include lattices, crystal structure, bandstructure, band models, carrier distributions, drift, diffusion, pn junctions, solar cells, light-emitting diodes (LED), bipolar junction transistors (BJT), metal-oxide semiconductor capacitors (MOScap), and multi-acronym-device field effect transistors (madFETs).
ABACUS is the key element in the
Tool-Powered Curriculum on Semiconductor Device Education.
Crystal Viewer Demonstration: Various Crystal Systems
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12 Jun 2009 | Animations | Contributor(s): Gerhard Klimeck, Benjamin P Haley
This video shows the use of the Crystal Viewer Tool to visualize several crystal systems, including Si, GaAs, C60 Buckyball, and a carbon nanotube. Crystal systems are rotated in 3D, zoomed in and …
MOSFet Demonstration: MOSFET Device Simulation and Analysis
11 Jun 2009 | Animations | Contributor(s): Gerhard Klimeck, Benjamin P Haley
This video shows the simulation and analysis of a MOSFET device using the MOSFet tool. Several powerful analytic features of this tool are demonstrated.
MOSCap Demonstration: MOS Capacitor Simulation
This video shows the simulation of a MOS capacitor using the MOSCAP tool. Several powerful analytic features of this tool are demonstrated.
Piece-Wise Constant Potential Barriers Tool Demonstration: Bandstructure Formation with Finite Superlattices
This video shows the simulation and analysis of a systems with a series of potential barriers. Several powerful analytic features of Piece-wise Constant Potential Barrier Tool (PCPBT) are …
Periodic Potential Lab Demonstration: Standard Kroenig-Penney Model
This video shows the simulation of a 1D square well using the Periodic Potential Lab. The calculated output includes plots of the allowed energybands, a table of the band edges and band gaps, plots …
PN Junction Lab Demonstration: Asymmetric PN Junctions
This video shows the simulation and analysis of a several PN junctions using PN Junction Lab, which is powered by PADRE. Several powerful analytic features of this tool are demonstrated.
Crystal Viewer Tool: First-Time User Guide
01 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck
This first-time user guide is an introduction to the Crystal Viewer Tool lab. It provides basic definitions, including a definition of crystals. Any suggestions for changes and corrections are …
Uniform versus delta doping in 1D heterostructures: an Exercise
15 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise is designed to demonstrate that delta doping leads to larger sheet electron density in the channel and it also allows for better control of the charge density in the channel region of …
Parallel Conduction Channel: an Exercise for 1D Heterostructure Lab
This exercise uses the 1-D Heterostructure Lab, which demonstrates that adding more dopants in the buffer layer becomes ineffective after certain critical doping density. Beyond this critical doping …
Piece-Wise Constant Potential Barriers Tool
30 Jun 2008 | Tools | Contributor(s): Xufeng Wang, Samarth Agarwal, Gerhard Klimeck, Dragica Vasileska, Mathieu Luisier, Jean Michel D Sellier
Transmission and the reflection coefficient of a five, seven, nine, eleven and 2n-segment piece-wise constant potential energy profile
Bulk Band Structure: a Simulation Exercise
03 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This simulation exercise teaches the students about band structure of indirect and direct bandgap materials, the optical gaps, the concept of the effective mass and the influence of spin-orbit …
BJT - Simulation Exercise
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 …
Hall Effect - Theoretical Exercise
MESFET - Theoretical Exercise
BJT - Theoretical Exercise
MOSFET - Theoretical Exercises
MOSCAP - Theoretical Exercises 3
02 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
MOSCAP - Theoretical Exercises 2
MOSCAP - Theoretical Exercises 1
Schottky diode - Theoretical exercises
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