Sony and TSMC to Put 747 Billion Yen Into New Kumamoto Sensor Venture

Sony and TSMC have signed a binding agreement to set up a joint venture in Koshi, Kumamoto Prefecture, putting in roughly 747 billion yen in stages and starting volume production of next-generation smartphone image sensors in 2029. For readers in Taiwan this is TSMC's second layer in Japan: from taking orders to co-owning a company with a Japanese electronics group. Staged funding signals a long commitment rather than a one-off equipment purchase, and moving from May's basic agreement to a binding contract closes off the most common risk in chip announcements — projects declared but never built. Watch three things: whether each funding stage arrives on time, whether the 2029 schedule slips, and whether Kumamoto's labour and housing supply keeps pace.