Sony Group and Taiwan Semiconductor Manufacturing Company (TSMC) are in advanced talks to invest a combined 1 trillion yen ($6.4 billion) in a joint image-sensor fabrication plant in Japan, targeting production start in 2029 to serve booming demand from robotics and automotive customers.
Kumamoto campus expansion cements Sony's fab-light pivot
Under the tentative structure, Sony Semiconductor Solutions will control roughly 60% of the venture and TSMC will hold the remaining 40%. The new facility will sit inside Sony's existing image-sensor campus in Kumamoto Prefecture in southern Japan, adjacent to Japan Advanced Semiconductor Manufacturing (JASM), the earlier Sony-TSMC joint venture that reached full-scale output in late 2024. CEO Hiroki Totoki has framed the deal as Sony's "first step to becoming fab-light," shifting capital-intensive wafer processing to TSMC while retaining device design and integration.
Auto and robotics vision sensors drive the bet
Sony is the world's largest supplier of CMOS image sensors used in smartphones and automobiles, and TSMC is the world's largest contract chipmaker. Both companies cite automotive perception, driver-monitoring, industrial inspection, and next-generation robotics as the primary demand drivers for the plant's advanced-node stacked sensor capacity. The Japanese government is expected to provide financial support consistent with its previous subsidies to JASM.
Second Sony-TSMC JV builds on JASM playbook
The pair signed a memorandum of understanding for the new venture in May and are now finalising terms. The 2021 JASM tie-up, controlled 71% by TSMC, produces 12-nm to 28-nm logic chips for automotive and consumer applications. The new image-sensor plant would deepen the Sony-TSMC-Japan supply-chain axis at a moment when Washington and Tokyo are steering advanced semiconductor capacity toward friendly geographies.
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Reporting based on coverage from Bloomberg, Reuters, Evertiq, and TSMC/Sony statements.