Tower Semiconductor Ltd.

Regulatory Filings • Jun 3, 2025

Tower Semiconductor to Present at IMS 2025 Highlighting Recent Innovations in RF Foundry Technology

Presenting a joint white paper with pSemi nominated for Best Industry Paper Award highlighting next-generation RF switch technology

MIGDAL HAEMEK, Israel, June 3, 2025 – Tower Semiconductor (NASDAQ/TASE: TSEM), a leading foundry of high-value analog semiconductor solutions, today announced its participation in the upcoming International Microwave Symposium (IMS) 2025, taking place June 16–21 in San Francisco, California, highlighting its advanced RF & HPA technology platform and latest advancements in RF switch technology. As part of the event's technical program, Tower will present a jointly developed white paper with pSemi, titled "A Low-Loss, Wideband, 0–110 GHz SPDT Using PCM RF Switches with Integrated CMOS Drivers" nominated for the Best Industry Paper Award at IMS2025.

This paper highlights a record-breaking wideband single-pole, double-throw (SPDT) switch utilizing Tower Semiconductor's monolithically integrated PCM RF switches in an RFSOI CMOS process. The key features include ultra-wideband performance (true DC to 110 GHz with less than 2 dB of insertion loss), digital control using integrated CMOS drivers with MIPI RFFE interface (available in the PDK), 30 dBm measured power handling, and 15-20 dB better linearity performance than RFSOI CMOS SPDTs currently available. This combination of ultra low-loss wideband performance, power handling, and full CMOS/digital integration simplifies implementation for end users and enables advanced circuits for 5G, future 6G, SatCom, beamforming, and millimeter-wave applications.

Presentation schedule:

A Low-Loss, Wideband, 0-110 GHz SPDT Using PCM RF Switches with Integrated CMOS Drivers

By Dr. Nabil El-Hinnawy, Principal R&D Engineer, Tower Semiconductor

As part of the Th1B session: Innovative RF Switches, Varactor and Modulator Technologies (full program details available here).

Date & Time: June 19, 2025 at 8:20AM Location: 205

To meet with Tower's engineering team during the conference, visit the Company's booth #655.

For additional details on IMS 2025, please visit the event webpage here.

For additional information about the Company's RF platform offering, visit here.

About Tower Semiconductor

Tower Semiconductor Ltd. (NASDAQ/TASE: TSEM), the leading foundry of high-value analog semiconductor solutions, provides technology, development, and process platforms for its customers in growing markets such as consumer, industrial, automotive, mobile, infrastructure, medical and aerospace and defense. Tower Semiconductor focuses on creating a positive and sustainable impact on the world through long-term partnerships and its advanced and innovative analog technology offering, comprised of a broad range of customizable process platforms such as SiGe, BiCMOS, mixedsignal/CMOS, RF CMOS, CMOS image sensor, non-imaging sensors, displays, integrated power management (BCD and 700V), photonics, and MEMS. Tower Semiconductor also provides world-class design enablement for a quick and accurate design cycle as well as process transfer services including development, transfer, and optimization, to IDMs and fabless companies. To provide multi-fab sourcing and extended capacity for its customers, Tower Semiconductor owns one operating facility in Israel (200mm), two in the U.S. (200mm), two in Japan (200mm and 300mm) which it owns through its 51% holdings in TPSCo, shares a 300mm facility in Agrate, Italy with STMicroelectronics as well as has access to a 300mm capacity corridor in Intel's New Mexico factory. For more information, please visit: www.towersemi.com.

Safe Harbor Regarding Forward-Looking Statements

This press release includes forward-looking statements, which are subject to risks and uncertainties. Actual results may vary from those projected or implied by such forward-looking statements. A complete discussion of risks and uncertainties that may affect the accuracy of forward-looking statements included in this press release or which may otherwise affect Tower's business is included under the heading "Risk Factors" in Tower's most recent filings on Forms 20-F, F-3, F-4 and 6-K, as were filed with the Securities and Exchange Commission (the "SEC") and the Israel Securities Authority. Tower does not intend to update, and expressly disclaim any obligation to update, the information contained in this release.

Tower Semiconductor Company Contact: Orit Shahar | +972-74-7377440 | oritsha@towersemi.com Investor Relations Contact: Liat Avraham | +972-4-6506154 | liatavra@towersemi.com