UMC Announces 40nm RFSOI Platform to Accelerate 5G mmWave Applications

United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), a leading global semiconductor foundry, today announced that its 40nm RFSOI technology platform is now ready for production of millimeter-wave (mmWave) radio frequency (RF) front-end products, enabling the proliferation of 5G wireless networks and applications including smartphones, Fixed Wireless Access (FWA) systems, and small cell base stations.

While the majority of today’s 5G networks operates in the sub-8GHz bands, mmWave technology employs a new frequency spectrum between 24GHz and 60GHz, making it possible to deliver blazing-fast transfer speeds, extremely low latency, and more reliable connectivity. UMC’s new platform, 40RFSOI, is optimized for manufacturing RF switches, low noise amplifiers, and power amplifiers capable of handling the wider bandwidth of mmWave frequencies. Balancing the need for more RF components in mmWave modules while keeping the size compact, 40RFSOI is an ideal solution for customers designing integrated RF chips that combines beamformers, core and passive devices, as well as front-end components on a single IC.

“The full potential of 5G hinges on the mainstream rollout of mmWave to deliver the speed and capacity required for virtual and augmented reality, smart cities, industrial automation, and applications in healthcare. With the introduction of our 40RFSOI platform, UMC expands our RF portfolio to enable our customers to deliver their advanced 5G devices to market and capture opportunities in the growing mmWave market,” said Raj Verma, Associate Vice President of Technology Development at UMC. “Several customers are currently engaged with us to customize the 40RFSOI process for their RF front-end products, and volume production is expected to start in 2024.”

UMC offers the most comprehensive RF front-end module solutions serving a broad range of applications including mobile, Wi-Fi, automotive, IoT, and satellite communications. The Company’s family of RFSOI solutions ranges from 8-inch to 12-inch wafer manufacturing. Since 2014, UMC has had over 400 product tape-outs and more than 35 billion RFSOI chips shipped for various applications. Its 55nm RFSOI technology has been in production for years serving the 5G sub-8GHz market.

About UMC

UMC (NYSE: UMC, TWSE: 2303) is a leading global semiconductor foundry company. The company provides high quality IC fabrication services, focusing on logic and various specialty technologies to serve all major sectors of the electronics industry. UMC’s comprehensive IC processing technologies and manufacturing solutions include Logic/Mixed-Signal, embedded High-Voltage, embedded Non-Volatile-Memory, RFSOI and BCD etc. Most of UMC's 12-in & 8-in fabs with its core R&D are located in Taiwan, with additional ones throughout Asia. UMC has total 12 fabs in production with combined capacity of approximately 850,000 wafers per month (8-in equivalent), and all of them are certified with IATF 16949 automotive quality standard. UMC is headquartered in Hsinchu, Taiwan, plus local offices in United States, Europe, China, Japan, Korea & Singapore, with worldwide total 20,000 employees. For more information, please visit:

Note from UMC Concerning Forward-Looking Statements

Some of the statements in the foregoing announcement are forward-looking within the meaning of the U.S. Federal Securities laws, including statements about introduction of new services and technologies, future outsourcing, competition, wafer capacity, business relationships and market conditions. Investors are cautioned that actual events and results could differ materially from these statements as a result of a variety of factors, including conditions in the overall semiconductor market and economy; acceptance and demand for products from UMC; and technological and development risks. Further information regarding these and other risks is included in UMC’s filings with the U.S. Securities and Exchange Commission. UMC does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law.


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