gallium arsenide


Also found in: Dictionary, Financial, Acronyms, Wikipedia.
Related to gallium arsenide: Gallium Arsenide Laser

gallium arsenide

[′gal·ē·əm ′ärs·ən‚īd]
(inorganic chemistry)
GaAs A crystalline material, melting point 1238°C; frequently alloys of this material are formed with gallium phosphide or indium arsenide.

gallium arsenide

An alloy of gallium and arsenic compound (GaAs) that is used as the base material for chips. Several times faster than silicon, it is used in high frequency applications such as cellphones, DVD players and fiber optics. In 2001, Motorola developed a technique that places a spongy layer between gallium arsenide and silicon on the same wafer. Combining these two materials yields a higher-speed product at a lower cost. See gallium nitride.
References in periodicals archive ?
The thing that gets me excited about this is there's a huge amount of potential for being able to put silicon and gallium arsenide and other materials like that on the same chip.
Gailon Brehm, TriQuint's military business unit director said, "TriQuint currently supplies high volume, cost effective foundry services and standard products based on high voltage gallium arsenide.
Ramdani began wondering whether the STO would serve the same function for gallium arsenide.
Microelectronics makers will find it easier to craft new devices by knowing the true arrangement of atoms on the gallium arsenide surface, researchers say.
Marcus and his colleagues at Stanford and the University of California, Santa Barbara fabricated their micrometer-square dot in a sandwich of gallium arsenide and aluminum gallium arsenide.
It utilizes a gallium arsenide (GaAs) pHEMT (enhancement mode pseudomorphic high electron mobility transistor) switch and diplexer to provide the critical function that switches highly sensitive phone signals between all WCDMA (IMT2100) and GSM bands (GSM-850/900/1800/1900) inside the handset.
The researchers studied the effect of 120-femtosecond pulses of laser light at a wavelength of 620 nanometers on a variety of metals and semiconductors, including silicon, gallium arsenide, gold, and aluminum.
Our new EDGE PA module includes a superior power controller which, in conjunction with the gallium arsenide (GaAs) HBT (heterojunction bipolar transistor) amplifier, provides consistent AM/AM (amplitude to amplitude) and AM/PM (amplitude to phase) characteristics over temperature, frequency, input power, and battery voltage," said Paul Cooper, TriQuint Semiconductor Product Marketing Manager.
Known as the "double electron layer tunneling transistor," the device consists essentially of two slabs of gallium arsenide, each 15 nanometers thick, separated by an aluminum gallium arsenide barrier 12.
By growing gallium arsenide crystals nearly 25 percent purer than those previously made, the group recorded a maximum electron speed of 14.