1. Wafer Foundry Pricing Rebounds in Q3: A Signal of Market Recovery
In Q3 2026, the global semiconductor market reaches a key turning point. After nearly two years of inventory adjustment, the wafer foundry industry is gradually overcoming the oversupply dilemma, and pricing is starting to rebound. According to the latest data from SEMI (Semiconductor Industry Association), the global wafer foundry capacity utilization rate recovered from 72% in Q1 to 78% in Q2 2026, and is expected to further increase to over 85% in Q3. Among them, TSMC, as the global wafer foundry leader, has announced to increase the production priority of some advanced processes (such as 3nm, 5nm), mainly focusing on AI server chips and automotive semiconductors; Samsung Electronics has increased the capacity of 7nm and below processes to meet the growing demand for HBM (High Bandwidth Memory) chips.
The core drivers of the wafer foundry pricing rebound come from two major areas: the surge in AI computing power demand and the supply gap in automotive semiconductors. AI server chips require wafer foundry services with high process and high yield, while automotive chips have extremely high requirements for reliability and supply stability. These two types of demand drive wafer foundry companies to readjust their production capacity layout, thereby driving up pricing.
2. AI and Automotive Demand: The Dual Engines of Wafer Foundry
1. AI Computing Power Demand: The Rise of HBM and Inference Chips
The rapid development of AI technology has brought huge demand for computing power chips. According to Gartner's forecast, the global AI chip market size will reach $150 billion in 2026, with a year-on-year growth rate exceeding 30%. Among them, HBM (High Bandwidth Memory) chips, as a core component of AI servers, have particularly significant demand growth. HBM requires stacking multiple DRAM chips on a wafer, which has extremely high requirements for the process precision and packaging and testing technology of wafer foundries. Both TSMC and Samsung have increased their capacity investment in HBM, and the adjustment of wafer foundry pricing also reflects this trend.
In addition, the demand for AI inference chips (such as NPU, ASIC) is also growing rapidly. Compared with GPUs, ASICs can provide higher energy efficiency in specific application scenarios, so more and more companies are choosing customized AI inference chips. The process of these chips is usually 7nm to 14nm, which has a large demand for wafer foundry capacity, further driving up pricing.
2. Automotive Semiconductors: Supply Gap and Process Upgrades
Automotive semiconductors are another important area driving the rebound in wafer foundry pricing. As the electrification and intelligence of automobiles accelerate, the demand for automotive chips has increased significantly. According to IC Insights statistics, the automotive semiconductor market size will reach $80 billion in 2026, with a year-on-year growth rate of about 20%. Among them, the demand for automotive-grade MCUs (microcontrollers) and power semiconductors (such as MOSFET, IGBT) is the most significant.
However, there is a clear supply gap in automotive semiconductors. Due to the extremely high reliability requirements of automotive chips and long manufacturing cycles, many wafer foundry companies have insufficient investment in the automotive field in the past, leading to supply chain tensions. Currently, the process of automotive chips is mainly concentrated in 28nm to 40nm, but with the development of smart cars, the demand for automotive chips with higher processes (such as 16nm, 7nm) is also increasing. To cope with this trend, wafer foundry companies have to adjust their production capacity layout, thereby driving up pricing.
3. Thailand's Packaging and Testing Chain: Beneficiary of Wafer Foundry Pricing Rebound
1. Thailand's Packaging and Testing Capacity Advantages
As a key hub for semiconductor packaging and testing in Southeast Asia, Thailand has rich packaging and testing capacity and technical experience. According to data from Thailand's BOI (Board of Investment), Thailand's packaging and testing capacity accounts for more than 40% of the total capacity in Southeast Asia, with major enterprises including ASE (Advanced Semiconductor Engineering) and Amkor, international leaders. These companies are at the leading edge in packaging and testing technology and can meet the packaging and testing needs of high-demand products such as AI chips and automotive chips.
With the rebound in wafer foundry pricing, the order visibility of Thailand's packaging and testing chain has significantly improved. For example, ASE's packaging and testing plant in Thailand has received a large number of packaging and testing orders for HBM chips and automotive chips, with a capacity utilization rate of over 90%. This shows that Thailand's packaging and testing chain is becoming a beneficiary of the wafer foundry pricing rebound.
2. Policy Support and Industrial Chain Layout
The Thai government has introduced various preferential policies to promote the development of the semiconductor industry. For example, BOI provides policies such as tax reductions and land preferential policies to attract semiconductor companies to invest. In addition, Thailand is actively promoting the research and development of advanced packaging and testing technologies, such as the packaging and testing of SiC (Silicon Carbide) power semiconductors, to meet the needs of automotive electronics and industrial automation.
Recently, Thailand's BOI announced the launch of a "Semiconductor Investment Super Package", which provides up to 30% tax reduction for investments in fields such as advanced packaging and testing and wafer manufacturing. This policy will further strengthen Thailand's position in the semiconductor packaging and testing chain and attract more international companies to transfer their capacity to Thailand.
4. Investment Opportunities: The Potential of Wafer Foundry and Thailand's Packaging and Testing Chain
1. Investment Opportunities for Leading Wafer Foundry Enterprises
The rebound in wafer foundry pricing brings investment opportunities for leading enterprises. The capacity utilization of companies like TSMC and Samsung has increased, and their profitability has strengthened, with stock prices expected to rise accordingly. In addition, the layout of these companies in the AI and automotive fields will provide impetus for long-term growth.
2. Investment Potential of Thailand's Packaging and Testing Chain
The investment opportunities in Thailand's packaging and testing chain mainly come from capacity expansion and technological upgrading. As orders increase, packaging and testing companies need to expand their capacity, which will drive equipment investment and talent demand. In addition, the policy support from the Thai government reduces investment risks and attracts more capital to enter.
For investors, they can focus on Thailand's packaging and testing companies, such as the subsidiaries of ASE and Amkor in Thailand, or participate in Thailand's BOI semiconductor investment projects. In addition, equipment suppliers related to the packaging and testing chain (such as packaging equipment, testing equipment) will also benefit from capacity expansion.
5. Conclusion: The Recovery of the Semiconductor Industry Chain and the Rise of Thailand
In Q3 2026, the rebound in wafer foundry pricing marks the recovery of the semiconductor industry chain. AI and automotive demand have become the dual engines driving market growth, and Thailand, as a key hub for semiconductor packaging and testing in Southeast Asia, leveraging its capacity advantages and policy support, has become a beneficiary of this trend. In the future, as the semiconductor industry chain further adjusts, Thailand is expected to play a more important role in the packaging and testing field, bringing new opportunities for investors.
