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Infineon expands GaN for energy efficiency and configuration

They are designed for high performance applications such as switch mode power supplies, in server, telecomms, mobile power and consumer goods, such as Class D audio systems. They will also, believes the company, reduce the size and weight of power supplies which will open up new opportunities in end-products such as ultra-thin LED TVs.

The company will offer dedicated driver and controller ICs which enable the topologies and higher frequencies that leverage GaN, following the company’s acquisition of International Rectifier. There will also be a broader patent portfolio, GaN-on-Silicon epitaxy process and 100 to 600V technologies. Following a strategic partnership with Panasonic, the companies will jointly introduce devices using Panasonic’s normally-off (enhancement mode) GaN-on-Silicon transistor structure integrated into Infineon’s surface mount device packages.

GaN-on-Silicon-based technology delivers increased power density and higher energy efficiency in a smaller footprint compared to silicon-based solutions, reports the company, making it suitable for consumer goods from TV power supplies to SMPS used in server and telecomms equipment. According to an IHS market research report, the GaN-on-Silicon market for power semiconductors is expected to grow at a compound annual growth rate (CAGR) of more than 50% leading to US$15 million in 2014 to US$800 million by 2023.

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