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## Tags: ABACUS

#### Description

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.

### Resources (1-20 of 89)

1. 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...

http://nanohub.org/resources/5102

2. ABACUS Exercise: Carriers Distribution vs. Energy

20 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...

http://nanohub.org/resources/9356

3. ABACUS Exercise: Conductivity and Carrier Concentration

20 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...

http://nanohub.org/resources/9359

4. ABACUS Exercise: Crystal Lattices and Miler Indices

20 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.

http://nanohub.org/resources/9361

5. 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...

http://nanohub.org/resources/9834

6. ABACUS: Test for Crystal Viewer Tool

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...

http://nanohub.org/resources/9456

7. 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 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...

http://nanohub.org/resources/9882

8. Band Structure Lab Demonstration: Bulk Strain

12 Jun 2009 | Animations | Contributor(s): Gerhard Klimeck

This video shows an electronic structure calculation of bulk Si using Band Structure Lab. Several powerful features of this tool are demonstrated.

http://nanohub.org/resources/6815

9. Basic operation of a PN diode - Theoretical exercise

02 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

These exercises help the students better understand the operation of conventional, p+n and short diode.www.eas.asu.edu/~vasileskNSF

http://nanohub.org/resources/5177

10. BJT - Simulation Exercise

03 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

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...

http://nanohub.org/resources/5199

11. BJT - Theoretical Exercise

03 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

www.eas.asu.edu/~vasileskNSF

http://nanohub.org/resources/5193

12. BJT Lab

06 Feb 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Dragica Vasileska, Gloria Wahyu Budiman

http://nanohub.org/resources/bjt

13. 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 Common-Emitter configuration npn type BJT.

http://nanohub.org/resources/10685

14. 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.

http://nanohub.org/resources/10732

15. 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.

http://nanohub.org/resources/10748

16. BJT Operation Description

18 Jul 2008 | Online Presentations | Contributor(s): Dragica Vasileska

This set of powerpoint slides is ment for undergraduate and first year graduate students and describe the basic principles of operation of Bipolar Junction Transistor.www.eas.asu.edu/~vasileskNSF...

http://nanohub.org/resources/5083

17. BJT Problems and PADRE Exercise

11 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This set of problems makes the students familiar with h-parameters and they also teach them how to write the input deck for simulation of BJT device to obtain the Gummel plot, the output...

http://nanohub.org/resources/5051

18. 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...

http://nanohub.org/resources/5201

19. Can we define unique effective masses in Si nanowires?

06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise teaches the users that for small nanostructures the concept of the effective mass becomes vague and in order to properly describe nanostructures one has to take into account the...

http://nanohub.org/resources/4880

20. Carrier Statistics Lab

08 Jan 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck

Calculate the electron & hole density in semiconductors

http://nanohub.org/resources/fermi

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