研报 | 受AI相关功率需求增长与大厂减产推动，晶圆厂正酝酿调涨八英寸代工价格

Core Viewpoint - The article discusses the adjustments in foundry prices and the changing dynamics of the eight-inch wafer supply and demand, highlighting the impact of AI-related Power IC demand and the reduction in production capacity by major players like TSMC and Samsung [2][4][6]. Supply Side Summary - TSMC and Samsung have begun to reduce eight-inch wafer production capacity, with TSMC aiming for partial shutdowns by 2027. This reduction is expected to lead to a global capacity decline of approximately 0.3% in 2025 and an estimated 2.4% in 2026 [3][4]. - The reduction in capacity by TSMC and Samsung is anticipated to result in a 2.4% year-on-year decrease in global eight-inch wafer capacity for 2026 [4][6]. Demand Side Summary - In 2025, the demand for AI Server Power ICs and the trend of localizing IC production in China have led to increased utilization rates for eight-inch capacity, prompting some manufacturers to raise foundry prices in the latter half of the year [5][6]. - The demand for Power-related ICs is expected to continue growing in 2026 due to increased computational power and energy efficiency requirements from AI applications, which will support the utilization rates of eight-inch wafers [5][6]. Price Adjustment Insights - Some foundries are planning to increase foundry prices by 5% to 20% due to the anticipated tightening of eight-inch capacity in 2026. This price adjustment is expected to be comprehensive across all customers and process platforms [6]. - Despite the planned price increases, actual price hikes may be moderated due to concerns in consumer markets and rising costs in memory and advanced processes affecting peripheral IC costs [6].