SOH1 SOITEC

X-FAB and Soitec team up to offer SmartSiC™ at Lubbock plant, USA

• Partnership to bring power devices based on Soitec’s cutting-edge SmartSiC™ silicon carbide wafers to X-FAB’s extensive fabless client network

Tessenderlo (Belgium) and Bernin (France), May 22, 2024 — X-FAB (Euronext Paris), a global pure-play foundry leader serving a large variety of fabless customers, and Soitec (Euronext Paris), a leader in designing and manufacturing innovative semiconductor materials, will begin work to offer Soitec’s SmartSiC™ wafers for the production of silicon carbide power devices at X-FAB’s plant in Lubbock, Texas.

This collaboration follows the successful completion of the assessment phase, during which silicon carbide (SiC) power devices were manufactured at X-FAB Texas on 150mm SmartSiC™ wafers. Soitec will offer X-FAB’s customers easy access to the SmartSiC™ substrate through a joint supply chain consignment model.

X-FAB is the pioneer and leader of the foundry model in the fast-growing SiC market. Silicon carbide (SiC) is a disruptive compound semiconductor material with intrinsic properties providing superior performance and efficiency over silicon in power applications.

SmartSiC™ is a proprietary Soitec technology based on the company’s SmartCut™ process, in which a thin layer of a high-quality monocrystalline (mono-SiC) ‘donor’ wafer is split off and bonded to a low resistivity polycrystalline (poly-SiC) ‘handle’ wafer. The resulting substrate offers improved device performance and manufacturing yields. The process allows multiple re-uses of a single donor wafer, significantly reducing cost and related CO2 emissions.

In this fast-growing market, Soitec is ramping production of SmartSiC™ substrates at its new plant of Bernin, near Grenoble (France). X-FAB is increasing production capacity for SiC devices at the Lubbock plant. The use of the SmartSiC™ substrate enables X-FAB’s customers to design smaller devices, resulting in efficiency improvements through an increased number of dies per wafer. The benefit of reduced CO2 emissions from the substrate manufacturing process will also contribute to X-FAB's initiative to reduce its overall carbon footprint.

Sophie Le-Guyadec VP Procurement of X-FAB, states: “As the leading SiC foundry, we want to provide our customers the full range of opportunities to design innovative and robust SiC devices for electric vehicles, renewable power and industrial applications. To offer the most advanced silicon carbide processes and manufacturing capabilities, we jointly agreed to provide our customers easy access to Soitec’s innovative SmartSiC™ via a consignment model.”

Emmanuel Sabonnadiere, Soitec Executive Vice President Automotive and Industry comments: “Soitec’s SmartSiC substrates and X-FAB’s foundry services are a perfect fit to meet increasing demand for new SiC products. This cooperation is a significant milestone for the deployment of SmartSiC in the U.S. market and internationally, thanks to X-FAB’s global footprint.”

About X-FABX-FAB is the leading analog/mixed-signal and MEMS foundry group manufacturing silicon wafers for automotive, industrial, consumer, medical and other applications. Its customers worldwide benefit from the highest quality standards, manufacturing excellence and innovative solutions by using X-FAB’s modular CMOS and SOI processes in geometries ranging from 1.0 µm to 110 nm, and its special silicon carbide and MEMS long-lifetime processes. X-FAB’s analog-digital integrated circuits (mixed-signal ICs), sensors and micro-electro-mechanical systems (MEMS) are manufactured at six production facilities in Germany, France, Malaysia, and the U.S. X-FAB employs approx. 4,500 employees worldwide.

For further information, please contact:MEDIA RELATIONSAnja NoackAnja.noack@xfab.comINVESTOR RELATIONSUta Steinbrecher  Uta.steinbrecher@xfab.com

About SoitecSoitec (Euronext- Tech Leaders), a world leader in innovative semiconductor materials, has been developing cutting-edge products delivering both technological performance and energy efficiency for over 30 years. From its global headquarters in France, Soitec is expanding internationally with its unique solutions, and generated sales of 1.1 billion Euros in fiscal year 2022-2023. Soitec occupies a key position in the semiconductor value chain, serving three main strategic markets: mobile communications, automotive and industrial, and smart devices. The company relies on the talent and diversity of its 2,100 employees, representing 50 different nationalities, working at its sites in Europe, the United States and Asia. Soitec has registered over 4,000 patents. Soitec, SmartSiC™ and Smart Cut™ are registered trademarks of Soitec. For more information: https://www.soitec.com/en/ and follow us on X: @Soitec_OfficialFor further information, please contact:MEDIA RELATIONSCaroline Sasiamedia@soitec.com

INVESTOR RELATIONSSteve Babureckinvestors@soitec.com

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