What is a GaAs Semiconductor?


March 1, 2016

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Among all the products available at Wafer World, one of types of semiconductors you can acquire is GaAs wafers. Although many understand what these types of semiconductors are and do, some consumers wonder what a GaAs semiconductor is and what its purposes are. To find out what the differences are between GaAs wafers and other types of wafers keep on reading!

What is GaAs?

GaAs is the chemical symbols for gallium arsenide. GaAs is a compound of the elements gallium and arsenic. These two elements combine and form a III-V direct bandgap semiconductor with a zinc blende crystal structure. Gallium arsenide can be prepared by three industrial processes: the vertical gradient freeze (VGF), the Bridgman-Stockbarger technique and liquid encapsulated Czochralski (LEC) growth.The VGF technique is the most common process for producing GaAs wafers. The method involves growing uniform crystals to a specific diameter and the thinly slicing it to very precise tolerances, edge rounding the form factors and finally polishing and packaging the wafers. In the Bridgman-Stockbarger method, the crystals are grown in a horizontal zone furnace that allows the gallium and arsenic vapors to react and then the free molecules deposit on a seed crystal cooler at the end of the furnace. The LEC growth method is used for producing high-purity single crystals that can exibit semi-insulating characteristics.

What are GaAs Semiconductors Used For?

The range of integrated circuits (ICs) and wafer uses is extremely diverse. GaAs is used a lot of times for devices such as microwave frequency ICs, monolithic microwave IC’s, light-emitting diodes (LEDs), laser diodes and solar cells. GaAs is extremely useful in the field of high-speed circuits and a lot of systems incorporate ultrathin GaAs chips in the front end.For all of your semiconductor and wafer needs, Wafer World can come through and provide the product you need for the specific projects you have.

We are leaders in wafer manufacturing, and if you are looking to purchase GaAs wafers or GaAs semiconductors, you can visit our wafer processing company online or call us at 561-842-4441 today!

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