台积电再建一座4nm工厂？

Core Viewpoint - TSMC is considering advancing its chip production technology at its second factory in Japan to meet the demand for AI-related products, which may lead to construction delays and design changes [3][4]. Group 1: Factory Development - TSMC's second factory in Kumamoto, Japan, which began construction in late October, is now contemplating a shift to 4nm process technology, moving away from the initially planned 6nm and 7nm chips [3]. - The construction of the Kumamoto factory has reportedly been paused, with heavy machinery cleared from the site by early December [3]. - TSMC has informed suppliers that it will not add equipment to its existing factory in Kumamoto until at least 2026, as demand for 6nm and 7nm chips has decreased [4]. Group 2: Market Demand and Technology Shift - The demand for 6nm and 7nm chips has declined, impacting TSMC's production capacity utilization at its main facility in Taichung, Taiwan [4]. - TSMC has a history of adjusting its construction plans based on market demand, as seen with its facility in Kaohsiung, which shifted from mature processes to advanced 2nm technology [4]. - TSMC is also considering introducing advanced chip packaging technology in Japan, which is crucial for AI chip manufacturing [5]. Group 3: Partnerships and Support - TSMC's projects in Japan are supported by companies such as Sony Semiconductor Solutions, Denso, and Toyota [5].