成熟制程，风险大增

Core Viewpoint - The article discusses the potential impact of the U.S. imposing high tariffs on semiconductor imports from Taiwan, particularly on mature process chips, which could lead to significant adjustments in Taiwan's semiconductor industry and supply chain dynamics [2][3]. Group 1: Tariff Implications - The U.S. is expected to announce results of a national security investigation regarding semiconductor imports, with potential tariffs on mature process chips from Taiwan reaching up to 20% [2]. - Taiwan's semiconductor industry, heavily reliant on exports to the U.S., faces heightened uncertainty due to these potential tariffs, which could disrupt existing supply chains [2][3]. - The article suggests that while the tariffs may not completely destabilize the semiconductor sector, they will likely prompt strategic adjustments, including increased overseas investments and manufacturing [3]. Group 2: Market Conditions - The semiconductor industry is experiencing a downturn, with major IC design firms significantly reducing wafer production for mature processes by 20% to 30% in Q3 compared to Q2, due to various negative factors including weak demand in mobile, networking, and automotive sectors [5][6][7]. - The automotive market is particularly struggling, impacting demand for mature process chips, with major companies like NXP and STMicroelectronics warning of poor market conditions [7]. - The capacity utilization rates for wafer foundries are expected to decline from around 70% in the first half of the year to approximately 60% or lower in the second half, which will adversely affect profit margins [7]. Group 3: Company Strategies - Companies like UMC are investing in R&D to focus on advanced technologies for 5G, AI, IoT, and automotive electronics, with UMC having invested NT$15.6 billion in R&D last year [9]. - UMC is exploring potential collaborations with Intel to enhance process technologies, while World Advanced is focusing on its 8-inch production and plans to build a 12-inch fab in Singapore with a total investment of $7.8 billion [10]. - Powerchip is targeting AI applications and has begun mass production of silicon interposers, contributing to revenue generation [11].