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CNIPA Validates EPC's GaN Gate Semiconductor Technology Patent

CNIPA Validates EPC's GaN Gate Semiconductor Technology Patent

El Segundo, CA – May 6, 2024 – Efficient Power Conversion Corp (“EPC”) announced today that the China National Intellectual Property Administration (“CNIPA”) has validated the claims of EPC patent titled “Compensated gate MISFET and method for fabricating the same” (Chinese Patent No. ZL201080015425.X) for enhancement-mode GaN semiconductor devices.

The decision on April 30, 2024 follows an April 2, 2024 announcement from the CNIPA that confirmed the validity of key claims of EPC’s Chinese patent titled “Enhancement mode GaN HEMT device and method for fabricating the same” (Chinese Patent No. ZL201080015388.2). Both EPC patents were challenged by Innoscience (Suzhou) Technology Co., Ltd. (“Innoscience”). 

Compared with traditional silicon-based power devices, GaN technology represents a transformational leap with higher efficiency, faster switching speeds and smaller size. GaN devices are used in artificial intelligence servers, self-driving vehicles, next-generation rapid chargers, drones, e-bikes, and humanoid robots, among other applications. Chinese Patent No. ZL201080015425.X covers the fundamental design and configuration of EPC’s proprietary enhancement mode GaN field effect transistors (FETs) with reduced gate leakage. Most industry participants employ the GaN gate technology covered by this patent.

“These are two of the foundational patents supporting our broad portfolio of innovations, and we are pleased that the CNIPA has again confirmed the validity of our valuable intellectual property,” said Alex Lidow, CEO and Co-founder of EPC. “Quick, fair and efficient decisions such as these reinforce the confidence in legal systems that companies need to operate globally.”

In May 2023, EPC filed complaints in the U.S. federal court in Los Angeles and in the U.S. International Trade Commission, asserting that Innoscience (Zhuhai) Technology Co., Ltd. and its affiliates infringe patents of its foundational patent portfolio, which include the U.S. counterparts of EPC’s Chinese Patent Nos. ZL201080015425.X and ZL201080015388.2. In response, Innoscience had petitioned the CNIPA to invalidate the two Chinese patents.

About Efficient Power Conversion (“EPC”)

EPC is a technology leader specialized in the field of power electronics through the development and commercialization of gallium nitride (GaN)-based power devices. With over 700 active global customers, EPC products are used by leading companies across a wide range of sectors, including power electronics in automotive, industrial, computing and space applications. GaN devices are also essential to the development of next-generation technologies such as autonomous driving, robotics, satellites, and AI servers. EPC has more than 200 issued patents and applications around the world, a testament to EPC’s status as the leading innovator in GaN-based power devices.