TSMC and Sony Are Building a $4.7 Billion Image-Sensor Company in Kumamoto

Sony and TSMC announced on August 11, 2026 that they will jointly invest $4.69 billion in a new company to develop and manufacture next-generation image sensors — the chips that turn light into the photos on a smartphone — in Kumamoto, in southern Japan. The venture, named Advanced Vision Semiconductor Manufacturing Corp, formalizes a partnership the two companies have been circling for years: Sony dominates the image-sensor market, and TSMC already runs its first Japanese chip plant, JASM, in the same prefecture.

The division of labor follows each company's strength. Sony leads development of the core image-sensor technology along with product planning and design — the layers that determine how a sensor performs in a phone camera. The venture manufactures those designs using TSMC's advanced process technology, the same capability that makes it the world's dominant contract chipmaker. Volume production is expected to start in 2029, so this is a bet on the smartphone camera roadmap several generations out, not on next year's models.

The location choice compounds an existing cluster. Kumamoto is where TSMC built JASM, its first fab in Japan, with Sony as a minority partner in that project — and Japanese suppliers, universities, and local government have spent years building the surrounding infrastructure. Putting the sensor venture in the same prefecture lets both companies reuse that ecosystem rather than building a new one. TSMC separately confirmed the same week that advanced-packaging demand from AI customers continues to outrun capacity, which makes its willingness to commit ¥282 billion to a camera-sensor project a notable statement about how it sizes the long-term sensor market.

Sony filed formal notice of the venture with the US Securities and Exchange Commission the same day — worth knowing because it makes the investment amounts and ownership split regulatory-grade figures rather than press-report estimates.