What Are the Applications of Gallium Arsenide Semiconductors?


March 18, 2023

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Compared to silicon, gallium arsenide (or GaAs wafers) are semiconductors with high electron mobility and saturation electron velocity. This property allows gallium arsenide transistors to operate at more than 250 GHz frequencies. Devices made of gallium arsenide don't react negatively to heat because of their large bandgap. Additionally, these devices often produce less noise than silicon devices, especially at high operating frequencies.

Close up of a hand holding a GaAs Wafer

Application of GaAs Wafers

What Exactly are GaAs Wafers?

'GaAs' is an abbreviation for Gallium Arsenide, a two-element compound and the semiconductor used to make GaAs wafers. GaAs is a direct bandgap semiconductor, meaning that particles like electrons can pass through components much faster and with less interference. Because photons can easily pass through lenses, they are particularly useful in optical devices.

What Is the Purpose of Gaas Wafers?

The capabilities of the compound dictate the use of GaAs wafers. Because GaAs are direct bandgap semiconductors, they are particularly useful in sensitive electronic equipment requiring low-frequency amplification. The following are some of the most common applications for GaAs wafers:

  • Radars and radio communication devices
  • Tachometers
  • Satellites
  • Microwaves
  • LEDs

Other Applications

Gallium arsenide can create devices such as microwaves, microwave frequency circuits, infrared lights, solar cells, laser diodes, and optical windows.  

In contrast to many other semiconductors, GaAs have a direct bandgap, which suggests that they may produce light with high efficiency. Because it has a straight bandgap and is radiation-damage resistant, it can be used in space electronics and optical windows for high-power applications.

It provides natural isolation between circuits and devices and is also an electrical substrate. As a result, microwave and millimeter-wave ICs can use it. The Opportunity and Spirit rovers, which are now investigating the surface of Mars, are powered by solar cells made of GaAs wafer. GaAs are also used in solar arrays for several solar automobiles.

Several GaAs Wafers scattered across a white surface

Are You Looking for High-Quality Gaas Wafers?

At Wafer World, our team is dedicated to providing reliable and high-quality GaAs wafers and other materials such as silicon wafers. Give us a call to learn more about our services!