Course Details
Contents
Semiconductor materials - Space lattices, Introduction to quantum theory of solids, Schrodinger wave equation - electron in free space, infinite potential well and finite potential barrier and tunnelling, Allowed and forbidden bands, Density of states function, Fermi Dirac distribution, Charge neutrality, Degenerate and non-degenerate doping, Carrier transport - mobility, drift and diffusion, continuity equation, graded impurity distribution and induced electric field, Einstein relations.
Nonequilibrium excess carriers in semiconductors - carrier generation and recombination, continuity and time dependent diffusion equations, ambipolar transport, Quasi-Fermi levels PN Junctions - zero applied bias, built-in potential, electric field and space charge width, reverse bias and junction breakdown, junction capacitance, non-uniformly doped junctions, PN junction current, IV characteristics, temperature effects, minority carrier distribution, generation-recombination effects, Nanohub simulations of PN junction devices, Schottky barrier diode, Band diagrams for Ohmic and rectifying contacts,
MOSCAP Operation - energy band diagrams, depletion layer thickness, work function differences, surface charge, flatband and threshold voltages, Capacitance Voltage curve - Ideal and frequency effects, Nanohub exercises on MOSCAP operation*, high-k dielectric and their impact on CV, Long Channel MOSFET - Structure, IV Characteristics, Short Channel MOSFET - IV Characteristics, Constant-Field and generalized scaling , Short channel effects - channel length modulation, velocity saturation and subthreshold leakage, Introduction to transistors in 21st century* - CMOS logic gates, inverters, NAND and NOR gates, FinFETs, Technology limitations, SPICE and TCAD simulations, Overview of bipolar junction transistors - basic principles and modes of operation, Minority carrier distribution and non-ideal effects.
Overview of Opto-electronic devices - optical absorption, electron-hole pair generation rate, PN junction solar cell, conversion efficiency, heterojunction and amorphous silicon solar cells, PIN diode, avalanche photo diode, Photoluminescence and electroluminescence, luminescent efficiency, LEDs- internal quantum efficiency and external quantum efficiency, laser diodes
References
1. Donald Neamen, Semiconductor Physics and Devices (2012)
2. Robert F. Pierret, Semiconductor Device Fundamentals (1996)
3. Streetman and Banerjee, Solid State Electronic Devices (2014)