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TDK acquires QEI

July 15, 2025
The dc power supply manufacturer adds RF power to support semiconductor fabrication

Electronics supplier TDK Corporation has acquired QEI Corporation, which designs and manufactures advanced radio frequency (RF) power generators and impedance matching networks for critical plasma processing in semiconductor production.

As demand for semiconductor devices surges, fueled by artificial intelligence (AI), internet of things (IoT), data centers and electric vehicles, the need for advanced fabrication equipment grows. TDK already plays a role in this market with dc power supplies, now adding QEI’s RF power solutions for processes such as deposition and etch.

“We’re excited to welcome QEI’s talented RF team to TDK,” says Jeff Boylan, president and CEO, TDK-Lambda Americas. “QEI’s flexible RF technology, combined with our leading dc products, allows us to deliver advanced, high quality power solutions for semiconductor plasma applications, opening the door to this $1B+ RF market. Our global network for sales, support and service will accelerate the growth of this expanded product line.”

“We are grateful for the years of dedicated service of our employees,” says Alex Nazarenko, president of QEI Corporation. “We know that with TDK at the helm, all parties will achieve the great success that we wish for them.”

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