POWER SEMICONDUCTORS Infineon develops the world’s first 300mm power GaN technology

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Infineon Technologies AG has developed the world’s first 300 mm power gallium nitride (GaN) wafer technology, marking what some are calling a significant breakthrough in the power semiconductor industry.

Infineon Technologies AG has announced what it is calling a “breakthrough” with the successful development of the world’s first 300 mm power gallium nitridewafer technology. The development means that Infineon is the world’s first company to integrate 300 mm GaN wafer production into an existing, high-volume manufacturing setting.

A major leap for power electronics?

The development is undoubtedly going to be considered by some as a major leap forward for the power semiconductor industry, offering substantial gains in efficiency and production capacity. The use of 300 mm wafers, which are technologically superior to the widely-used 200 mm wafers, allows for a 2.3-fold increase in the number of chips per wafer, leading to enhanced productivity and potential cost savings according to Infineon.

Naturally, then, this advancement is likely to have a profound impact on the growing market for GaN-based power semiconductors, which are increasingly being adopted in a wide range of industries, from automotive to consumer electronics.

What is gallium nitride?

Gallium nitride (GaN) is a wide bandgap semiconductor with a bandgap of 3.2 electron volts, nearly three times higher than silicon's 1.1 eV. In short, this wider bandgap allows the material to operate at higher voltages, function at higher temperatures, and switch at higher frequencies than silicon. It can also achieve greater power density compared to traditional silicon-based devices, making it highly efficient in a smaller footprint.

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GaN-based power semiconductors have become popular for various applications due to these characteristics. Applications include power supplies for artificial intelligence systems, solar inverters, chargers, motor-control systems, and many others in the industrial, automotive, and communication sectors. With the introduction of 300 mm GaN wafer manufacturing, Infineon aims to enhance these characteristics further. The company believes that scaling production on larger wafers will ensure better supply stability and flexibility, allowing it to meet the growing demand for GaN power semiconductors in an increasingly competitive market.

Infineon wants to ‘lead the fast-growing GaN market’

Jochen Hanebeck, CEO of Infineon Technologies AG, emphasized the significance of this achievement, stating that it demonstrates the company’s innovative strength and commitment to leadership in the GaN and power systems markets.

"This technological breakthrough will be an industry game-changer and allow us to unlock the full potential of gallium nitride," Hanebeck said. He highlighted that the development is a key step in Infineon’s broader strategy to lead the fast-growing GaN market. This comes nearly a year after Infineon’s acquisition of GaN Systems, a move that solidified the company’s position in the power semiconductor sector. The breakthrough also reflects Infineon’s strategic focus on mastering three key materials in power systems: silicon, silicon carbide, and gallium nitride, each offering distinct advantages for different applications.

The new 300 mm GaN wafers are being manufactured in Infineon’s power fab in Villach, Austria, using an integrated pilot line within the company’s existing 300 mm silicon production infrastructure. Infineon is leveraging its well-established expertise in the production of 300 mm silicon and 200 mm GaN wafers to ensure a smooth transition and to scale its GaN capacity in line with market demands.

The company has stated that it will continue to expand its GaN production capabilities, aiming to shape the growing GaN market, which is projected to reach several billion US dollars by the end of the decade. Infineon’s ability to integrate 300 mm GaN manufacturing into its existing facilities will allow for accelerated implementation and efficient use of capital, positioning the company to meet rising global demand for high-performance semiconductors.

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