Sony and TSMC announce $4.69 billion Japanese joint venture for next-gen image sensors with mass production target in 2029

Sony and Taiwan Semiconductor Manufacturing Co are progressing with a major joint venture in Japan aiming to develop and produce cutting-edge smartphone image sensors by 2029, highlighting the strategic importance of sensor technology across industries.

Sony and Taiwan Semiconductor Manufacturing Co are moving ahead with a joint venture in Japan to make next-generation image sensors for smartphones, according to company statements and local reporting. The plan calls for a combined investment of about $4.69 billion and aims to begin mass production in 2029.

Sony Semiconductor Solutions said in May that the proposed venture would be majority-owned by Sony and would be built around its newly constructed facility in Koshi, Kumamoto prefecture. The company said the arrangement would pair Sony’s sensor design capabilities with TSMC’s process technology and manufacturing expertise. Sony would hold the controlling stake and lead technology development, product planning and design.

The structure of the investment also reflects that split. Sony has said it will contribute 465 billion yen, or about $2.92 billion, including assets such as its new chip plant in Kumamoto. TSMC plans to invest 282 billion yen, or about $1.77 billion. The companies have indicated that funding will be phased in line with market demand and business conditions, and that additional capital may be needed if they are to reach the planned production scale, assuming support from the Japanese government.

The venture is not yet fully finalised. According to Sony and TSMC, it still requires a definitive binding agreement and standard closing conditions before it can be established. Even so, the project underlines how seriously both companies view the strategic importance of image sensors, a component that has become central to smartphone cameras and increasingly relevant in areas such as automotive systems and robotics.