Mosfet Models

Abstract

The metal-oxide-semiconductor field-effect transistor (MOSFET) is the most important device for very-large-scale integrated circuits such as microprocessors and semiconductor memories. MOSFET is also becoming an important power device. Because the current in a MOSFET is transported predominantly by carriers of one polarity only (e.g., electrons in an n-channel device), the MOSFET is referred to as a unipolar device. Although MOSFETs have been made with various semiconductors such as Ge, Si, GaAs, and use various insulators such as SiO₂, Si₃N₄, and Al₂O₃, the most important system is the Si-SiO₂ combination [15].