What is gallium arsenide (GaAs)? - Definition from WhatIs.com

Definition

gallium arsenide (GaAs)

Part of the Electronics glossary:

Gallium arsenide (chemical formula GaAs) is a semiconductor compound used in some diode s, field-effect transistor s (FETs), and integrated circuit s (ICs). The charge carriers, which are mostly electron s,move at high speed among the atom s. This makes GaAs components useful at ultra-high radio frequencies, and in fast electronic switching applications. GaAs devices generate less noise than most other types of semiconductor components. This is important in weak-signal amplification.

Gallium arsenide is used in the manufacture of light-emitting diode s (LEDs), which are found in optical communications and control systems. Gallium arsenide can replace silicon in the manufacture of linear ICs and digital ICs. Linear (also called analog ) devices include oscillator s and amplifier s. Digital devices are used for electronic switching, and also in computer systems.

This was last updated in March 2011
Posted by: Margaret Rouse

Related Terms

Definitions

  • robot

    - A robot is a machine designed to execute one or more tasks automatically with speed and precision. There are as many different types of robots as there are tasks for them to perform. (WhatIs.com)

  • matter

    - Matter is a substance that has inertia and occupies physical space. (WhatIs.com)

  • telechir

    - A telechir is a complex robot that is remotely controlled by a human operator in a telepresence system, which gives a person the sense of being on location in a remote, dangerous, or alien environm... (WhatIs.com)

Glossaries

  • Electronics

    - Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About gallium arsenide (GaAs)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.