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ECE 606 Lecture 17: Hall Effect, Diffusion
0.0 out of 5 stars
24 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
Outline:Measurement of mobilityHall Effect for determining carrier concentrationPhysics of diffusionConclusions
ECE 606 Lecture 16: Carrier Transport
23 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
ECE 606 Lecture 15: Surface Recombination/Generation
29 Mar 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
Outline:Nature of interface statesSRH formula adapted to interface statesSurface recombination in depletion regionConclusion
ECE 606 Lecture 14: Bulk Recombination
5.0 out of 5 stars
Outline:Derivation of SRH formulaApplication of SRH formula for special casesDirect and Auger recombinationConclusion
ECE 606 Lecture 13: Recombination-Generation
16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
Outline:Non-equilibrium systemsRecombination generation eventsSteady-state and transient responseDerivation of R-G formulaConclusion
ECE 606 Lecture 12: Equilibrium Concentrations
Outline:Carrier concentrationTemperature dependence of carrier concentrationMultiple doping, co-doping, and heavy-dopingConclusion
ECE 606 Lecture 11: Equilibrium Statistics
Outline:Law of mass-action & intrinsic concentration Statistics of donors and acceptor levelsConclusion
ECE 606 Lecture 10: Additional Information
Outline:Potential, field, and chargeE-k diagram vs. band-diagramBasic concepts of donors and acceptorsConclusion
ECE 606 Lecture 9: Fermi-Dirac Statistics
04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
Outline:Rules of filling electronic statesDerivation of Fermi-Dirac Statistics: three techniquesIntrinsic carrier concentrationConclusion
ECE 606 Lecture 8: Density of States
Outline:Calculation of density of statesDensity of states for specific materialsCharacterization of Effective MassConclusions
ECE 606 Lecture 7: Energy Bands in Real Crystals
Outline:E-k diagram/constant energy surfaces in 3D solidsCharacterization of E-k diagram: BandgapCharacterization of E-k diagram: Effective MassConclusions
ECE 606 Lecture 6: Energy Bands (continued)
Outline:Properties of electronic bandsE-k diagram and constant energy surfacesConclusions
ECE 606 Lecture 5: Energy Bands
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Outline:Schrodinger equation in periodic U(x)Bloch theoremBand structureProperties of electronic bandsConclusions
ECE 606 Lecture 4: Solution of Schrodinger Equation
Outline:Time-independent Schrodinger EquationAnalytical solution of toy problemsBound vs. tunneling statesConclusionsAdditional Notes: Numerical solution of Schrodinger Equation
ECE 606 Lecture 3: Elements of Quantum Mechanics
28 Jan 2009 | Online Presentations | Contributor(s): Muhammad A. Alam
Outline:Why do we need quantum physicsQuantum conceptsFormulation of quantum mechanicsConclusions
ECE 606 Lecture 2: Geometry of Periodic Crystals
Outline:Volume & surface issues for BCC, FCC, Cubic latticesImportant material systemsMiller indices ConclusionsHelpful software tool: Crystal Viewer in the ABACUS tool suite.
ECE 606 Lecture 1: Introduction
4.5 out of 5 stars
Outline:Course information Current flow in semiconductors Types of material systems Classification of crystals
ECE 606: Principles of Semiconductor Devices
12 Nov 2008 | Courses | Contributor(s): Muhammad A. Alam
In the last 50 years, solid state devices like transistors have evolved from an interesting laboratory experiment to a technology with applications in all aspects of modern life. Making transistors is a complex process that requires unprecedented collaboration among material scientists, solid...
Lecture 2: Thresholds, Islands, and Fractals
04 Nov 2008 | Online Presentations | Contributor(s): Muhammad A. Alam
Three basic concepts of the percolation theory – namely, percolation threshold, cluster size distribution, and fractal dimension – are defined and methods to calculate them are illustrated via elementary examples. These three concepts will form the theoretical foundation for discussion in...
Lecture 1: Percolation in Electronic Devices
Even a casual review of modern electronics quickly convinces everyone that randomness of geometrical parameters must play a key role in understanding the transport properties. Despite the diversity of these phenomena however, the concepts percolation theory provides a broad theoretical framework...
03 Nov 2008 | Courses | Contributor(s): Muhammad A. Alam
The electronic devices these days have become so small that the number of dopant atoms in the channel of a MOFET transistor, the number of oxide atoms in its gate dielectric, the number silicon- or metal crystals in nanocrystal Flash memory, the number of Nanowires in a flexible nanoNET...
29 Sep 2008 | Online Presentations | Contributor(s): Muhammad A. Alam
2008 NCN@Purdue Summer School: Electronics from the Bottom Up
26 Aug 2008 | Workshops | Contributor(s): Muhammad A. Alam, Supriyo Datta, Mark Lundstrom
Electronics from the Bottom Up is designed to promote the bottom-up perspective by beginning at the nanoscale, and working up to the micro and macroscale of devices and systems. For electronic devices, this means first understanding the smallest electronic device – a single molecule with two...
Mobility Variation Due to Interface Trap Generation in Plasma Oxynitrided PMOS Devices
30 Jun 2008 | Online Presentations | Contributor(s): Ahmad Ehteshamul Islam, Souvik Mahapatra, Muhammad A. Alam
Mobility degradation due to generation of interfacetraps, Δµeff(NIT), is a well-known phenomenon that has beentheoretically interpreted by several mobility models. Based onthese analysis, there is a general perception that Δµeff(NIT) isrelatively insignificant (compared to Δµeff due to...
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 requested.NCN@Purdue