Solid State Electronic Devices, 7th Edition

Chapter 5 Junctions

Objectives

1. Determine the band diagram of a p-n junction in equilibrium and use the Poisson’s equation to calculate electric fields and potentials

2. Determine current flow components in an “ideal” diode, and why reverse leakage in an ideal diode is independent of bias; study applications in rectifiers

3. Understand depletion capacitance due to dopant charges, and diffusion capacitance due to mobile carriers

4. Study second-order effects—high-level injection, generation–recombination in depletion region, series resistance, and graded junctions

5. Study metal–semiconductor junctions (Schottky and ohmic) and heterojunctions, in terms of vacuum level, electron affinity, and work function

Most semiconductor devices contain at ...