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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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 and III-V semiconductor.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Also, arrays of nanowires would use at least 10,000 times less gallium arsenide, allowing for industrial use of this costly material.
It produces five times the power of gallium arsenide. If it replaced gallium arsenide devices in existing radars, the chip would give troops the ability to search the horizon for threats more quickly and to track objects about 50 times farther away.
"Together, these factors contribute to a growing demand for gallium arsenide based components, and we have seen no evidence of any let-up in the demand from any of our key customers in the wireless marketplace.
Rosin is used in flux; liquid crystals in all sorts of displays; gallium arsenide crystals are found in phones, optical networking and wireless LAN; and nickel is used for plating in a host of applications.
Three substances for which there were no previous IARC evaluations have now been evaluated and classified: gallium arsenide is classified as a Group I human carcinogen, indium phosphide as a Group 2A (probable) human carcinogen, and vanadium pentoxide as a Group 2B (possible) human carcinogen (IARC, in press a).
has released "GaAs Industry Forecast: 2003-2008," its five-year forecast for the Gallium Arsenide microelectronics industry.
It also demonstrates SiGe's much lower power consumption than the gallium arsenide and indium phosphide materials traditionally viewed as necessary for such high-speed operations.
AXT's chips were built on gallium arsenide, which works better in radiation-intensive applications.
The new technology, introduced in September, combines silicon - the basis of most computer chips - with gallium arsenide, an alternative chip-making material, to create an optical chip that is durable, cost effective and operates at higher speeds.
Filtronic Plc has concluded a 13m pound ($20.8m) cash acquisition of Fujitsu's semiconductor facility in the northeast of England, and negotiated a 5m pound ($8m) government grant to establish a 6 inch gallium arsenide semiconductor (GaAs) production operation at the plant.
Vitesse Semiconductor is the premier manufacturer of gallium arsenide chips, which are the world's fastest.
One University of Houston professor convinced NASA to spend $2.5 billion on five shuttle flights to make space-grown gallium arsenide (GaAs) semiconductor wafers, the starting material for GaAs computer chips.