electron mobility


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electron mobility

[i′lek‚trän mō′bil·əd·ē]
(solid-state physics)
The drift mobility of electrons in a semiconductor, being the electron velocity divided by the applied electric field.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Release date- 02092019 - Mitsubishi Electric Corporation (TOKYO: 6503) announced today that in collaboration with the Research Center for Ubiquitous MEMS and Micro Engineering, National Institute of Advanced Industrial Science and Technology (AIST), it has developed a gallium nitride-high electron mobility transistor (GaN-HEMT) in a multi-cell structure (multiple transistors cells arranged in parallel) bonded directly to a single-crystal diamond heat-dissipating substrate with high thermal conductivity.
"Large domains are required to fabricate next-generation electronic devices with high electron mobility. Electrons that can easily and quickly move through a crystal structure are key to improving device performance." (2)
In fact, Gallium Nitride High Electron Mobility Transistors (GaN HEMTs) have been available as commercial off-the-shelf devices since 2005.
today announced that they have developed a crystal structure that both increases current and voltage in gallium-nitride (GaN)(1) high electron mobility transistors (HEMT)(2), effectively tripling the output power of transistors used for transmitters in the microwave band.
Electron mobility and hole mobility are calculated with MATLAB software and input into AFORS-HET for simulation.
Besides, InN exhibits the narrowest band gap (for nitrides) which can be down to 0.67 eV at low temperatures, the lowest effective electron mass, and the highest peak drift velocity and electron mobility [4-7].
In addition to being affected by the relative number of electrons, the conductivity is also affected by the electron mobility. According to the characteristics of the CASTEP software.
To create the technology, Sandia National Laboratories grew ultra-wide bandgap (UWBG) aluminum gallium nitride (AlGaN) materials and from them fabricated an A10.3Ga0.7N PiN diode with a breakdown voltage > 1600 V and an AlN/A10.85Ga0.15N high electron mobility transistor (HEMT) with a breakdown voltage > 800 V, one of the highest-bandgap transistor ever reported.
Takashi Mimura was awarded the Kyoto Prize in advanced technology for his "invention of the High Electron Mobility Transistor (HEMT)".
By leveraging the superior one-dimensional (1D) transport properties of thousands of aligned, gate-controllable conduction pathways, linear current densities exceeding that of GaAs pHEMT (gallium arsenide metamorphic high electron mobility transistor) and silicon technologies have been realized.
IGZO has twice the resolution of ordinary LCDs, uses less power and delivers "life-like picture in super high definition." Its electron mobility is 20-50 times faster than the MacBook Pro's current display material. 

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