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STMicroelectronics and Sanan Inaugurate 8-inch SiC Facility in Chongqing, China
Arsenio Spadoni
March 1, 2025
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With a total investment of approximately $3.2 billion, the factory will have a production capacity of 480,000 8-inch SiC wafers for devices mainly intended for the automotive market.
STMicroelectronics' 8-inch SiC manufacturing plant in Chongqing , China, was officially inaugurated in the presence of STMicroelectronics Chairman and CEO Jean-Marc Chéry and Sanan Group Chairman Lin Xiucheng .
The new facility, which focuses on the production of automotive-grade SiC devices using 8-inch silicon carbide substrates, is expected to begin volume production in the fourth quarter of 2025. Once fully operational, the production line will have a capacity of approximately 10,000 automotive-grade 8-inch wafers per week, making it the first large-scale production line of its kind in China.
Established in August 2023 , the joint venture between Sanan Optoelectronics (51% stake) and STMicroelectronics Investment Co., Ltd. (49% stake) will invest approximately US$3.2 billion in the project over the next 5 years, including capital expenditure of approximately US$2.4 billion; the venture will be partly funded by the local government. In support of this project, Sanan Optoelectronics established Chongqing Sanan Semiconductor Co., Ltd. in July 2023, investing RMB 7 billion (approximately US$3.16 billion) to build a complementary 8-inch SiC substrate production line within the same industrial park, which began production in September 2024.
The ceremony, held at the facility in Chongqing High-Tech Zone, was attended by more than 300 guests, including Chongqing Mayor Hu Henghua , industry leaders, supply chain partners and representatives from both companies.
Lin Kechuang, general manager of Sanan Optoelectronics and president of the Sanan-STMicroelectronics joint venture, highlighted the rapid progress of the project, noting that it took only 16 months to complete. He attributed this success to the supportive business environment fostered by the Chongqing municipal government, the collaborative efforts of both shareholders, and the dedication of the project team.
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