Semiconductor Glossary, Developed Semi OneSource.
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With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.












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Term (Index) Definition
electron mobility  measure of electron scattering in semiconductor; proportionality factor between electron drift velocity and electric field as well as between carrier concentration and conductivity of semiconductor; unit cm2/V s; the same way as effective mass of an electron, electron mobility is different for different semiconductors; electron mobility at 300 K for three key semiconductors: Si -1500 cm2/V s, GaAs -7500 cm2/V s, 6H-SiC -400 cm2/V s; higher mobility of charge carriers makes semiconductor better suited for high speed applications.
drift velocity  velocity of charge carriers in semiconductor under the influence of electric field; as opposed to carriers in free space carriers in semiconductor are not "infinitely" accelerated by the electric field because of the scattering, and thus, they reach a finite velocity regardless of the period of time over which the field is acting; at a given electric field drift velocity is determined by the mobility of charge carrier.
hole mobility  parameter which is a measure of hole scattering in a semiconductor; proportionality factor between hole drift velocity and electric field as well as conductivity and hole concentration in semiconductor; due to its higher effective mass, hole mobility is typically significantly lower than electron mobility.
scattering  process responsible for electron in a certain state, defined by its crystal momentum, suddenly moving into a different state; result of interactions with host atoms in the lattice, dopant atoms, as well defects; fundamental effect defining electron transport in semiconductor; in a way scattering can be seen as a "collision" during which species do not come to physical contact.
mobility  important parameter defining transport of free charge carriers in semiconductor, and hence, semiconductor's conductivity; proportionality factor between semiconductor conductivity and concentration of charge carriers; different for different semiconductors due to the difference in the effective nass of charge carriers in different semiconductors; higher for electrons than holes due to lower effective mass.
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Information in this glossary is provided at the author's discretion. Any liability based on, or related to the contents of this glossary is disclaimed.