S. M. Sze, PhD, is UMC Chair Professor in the Electronics Engineering Department at the National Chiao Tung University. His previous books include Semiconductor Devices; Physics of Semiconductor Devices, Second Edition; High-Speed Semiconductor Devices; and Semiconductor Sensors, all available from Wiley. Ming-Kwei Lee is the author of Semiconductor Devices: Physics and Technology, 3rd Edition, published by Wiley.