ST teams for $3.2bn 200mm SiC fab in China

ST teams for $3.2bn 200mm SiC fab in China

Business news |
By Nick Flaherty

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STMicroelectronics is to create a joint venture in China with Sanan Optoelectronics for high-volume silicon carbide (SiC) devices built on 200mm wafers.

The joint venture fab in Chongqing will only supply ST to support demand for in China for car electrification and industrial power and energy applications and will use ST’s 200mm process technology, where it has a development deal with Soitec in France. It will also serve as a dedicated foundry to ST to support the demand of its Chinese customers.

Sanan, which develops LED, SiC, optical communications, RF, filters and GaN products, will separately build a 200mm SiC substrate manufacturing facility to supply the venture using its own SiC substrate process.

This comes as ST is completing its 150mm SiC substrate plant and pilot fab in Catania to boost its share of the SiC market.

The Chongqing fab is targeting to start production in Q4 2025 and full buildout is anticipated in 2028, supporting the rising demand in China for car electrification as well as for industrial power and energy applications.

The total amount for the full buildout of the JV is expected to be about $3.2bn, including capital expenditures of about $2.4bn over the next 5 years, which will be financed by contributions from STMicroelectronics and Sanan Optoelectronics, local government support, and loans to the JV. 

“China is moving fast towards electrification in Automotive and Industrial and this is a market where ST is already well-established with many engaged customer programs. Creating a dedicated foundry with a key local partner is the most efficient way to serve the rising demand of our Chinese customers. The combination of Sanan Optoelectronics’ future 200mm substrate manufacturing facility with the front-end JV and ST’s existing back-end facility in Shenzhen, China will enable ST to offer our Chinese customers a fully vertically integrated SiC value chain,” said Jean-Marc Chery, President and CEO of STMicroelectronics. 

“It is an important step to further scale up our global SiC manufacturing operations, coming in addition to our continuing significant investments in Italy and Singapore. This JV is expected to be one of the enablers of the opportunity we see to reach $5bn SiC revenues by 2030. This initiative is consistent with ST 2025-27 $20bn+ revenue ambition and the associated financial model, previously communicated to the financial markets.”

200mm SiC foundry

“The establishment of this joint venture will be a major driving force for the wide adoption of SiC devices on the Chinese market,” said Simon Lin, CEO of Sanan Optoelectronics. “Being an international, well-known, high quality SiC foundry service company, Sanan will also supply its SiC substrate to this new joint venture, by building a dedicated new SiC substrate factory. This is an important step for Sanan Optoelectronics’ ambitions as a SiC foundry. With this new Joint Venture and the new SiC substrate capacity expansion, we are confident that we will continue to take the lead in the SiC foundry market.”

The completion of the project is subject to regulatory approvals.

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