BEIJING, April 10, 2026 -- The global polished square wafer market is witnessing robust growth in 2026, fueled by the surging demand for advanced semiconductors, the rapid expansion of AI computing, and continuous technological breakthroughs in polishing processes, with high-precision polished square wafers becoming a core component in modern electronics, while grappling with significant supply gaps and rising production costs, according to the latest industry reports and semiconductor trade statistics.
The global polished square wafer market is projected to maintain strong growth momentum in the next decade. Data from HengCe Consulting shows that the global semiconductor polished wafer market size reached approximately USD 104.4 billion in 2024 and is expected to grow at a compound annual growth rate (CAGR) of 6.7% from 2025 to 2031, reaching USD 173.3 billion by 2031. Polished square wafers, a key variant of polished wafers, are gaining increasing traction due to their compatibility with advanced semiconductor manufacturing processes, with demand particularly strong in AI chips, power semiconductors and optoelectronic devices. IDC predicts that the broader wafer foundry market, which relies heavily on polished wafers, will exceed USD 3600 billion in 2026, a year-on-year increase of 17%, further driving the demand for polished square wafers.
Supply and demand dynamics in the market show obvious imbalances, with high-end polished square wafers facing severe shortages. According to industry data, the global demand for 12-inch advanced polished wafers, including square variants, exceeds 10 million pieces per month in 2026, while the effective global supply is only about 7.5 million pieces per month, resulting in a supply gap of approximately 25%. In China, the domestic demand for 12-inch polished wafers is around 3.6 million pieces per month, with domestic supply accounting for only 25%, leaving a 75% gap, and the gap for advanced polished square wafers exceeds 85%. Prices have surged accordingly: from April 2025 to April 2026, the price of 12-inch advanced polished wafers has increased by 60% to 80%, while 8-inch polished wafers have risen by 30% to 40%.
Technological innovation is reshaping the polished square wafer industry, with atomic-level precision becoming the new standard. Governments and enterprises worldwide are investing heavily in advanced polishing technologies: Beijing’s "Atomic-Level Manufacturing Innovation and Development Action Plan (2026—2028)" supports the development of plasma-assisted polishing, elastic emission machining and other technologies, aiming to achieve atomic-level surface flatness and angstrom-level removal rates for silicon wafers, meeting the needs of advanced semiconductor front-end processes. Heteroepitaxial technology has also become a core approach to reduce production costs, especially for optimizing high-electron-mobility transistor (HEMT) structures for high-frequency applications, which relies heavily on high-precision polished square wafers.
Key market players are accelerating capacity expansion and technological breakthroughs to address supply gaps. Leading Chinese manufacturers such as Shanghai Silicon Industry, Lion Microelectronics and Zhonghuan Semiconductor are ramping up production: Shanghai Silicon Industry plans to increase its monthly capacity of 12-inch polished wafers from 600,000 pieces to 800,000 pieces by the end of 2026, with a focus on square wafer production. International giants including Shin-Etsu and SUMCO are also expanding their production lines, but the long construction and verification cycle (24 months for expansion plus 12 months for verification) means the supply gap is expected to persist until 2028. Additionally, 41% of manufacturers are adopting advanced materials and energy-efficient designs to improve the durability and performance of polished square wafers.
Regional market performance shows clear differentiation. North America and Asia-Pacific are the leading consumer markets, accounting for 65% of the global polished square wafer demand. North America, driven by AI and cloud computing giants, has strong demand for high-end polished square wafers for advanced process chips, while Asia-Pacific, led by China, South Korea and Japan, is both a major consumer and producer, with rapid growth in domestic demand for semiconductors driving market expansion. Emerging markets in Latin America and Southeast Asia are also showing potential, supported by the transfer of mid-to-low-end semiconductor manufacturing capacity.
Despite the booming demand, the industry faces several significant challenges. High production costs are a major obstacle: building a 12-inch polished wafer factory costs over USD 25 billion, nearly three times the cost of a 7nm-era factory, limiting the ability of small and medium-sized enterprises to enter the market. Core technologies and components, such as high-end polishing pads and slurries, remain highly dependent on imports, with domesticization rates of polishing pads at only 20% and high-end polishing slurries at 50% in China, creating supply chain vulnerabilities. Additionally, the lack of skilled labor in precision polishing and quality inspection has also hindered industry development.
Industry analysts predict that in 2026 and beyond, the global polished square wafer market will be driven by three key trends: increasing demand for advanced process wafers, technological breakthroughs in atomic-level polishing, and accelerated domestic substitution. Enterprises that focus on core technology R&D, capacity expansion and supply chain optimization will gain a competitive edge. With the continuous growth of AI, 5G and electric vehicle industries, the demand for high-precision polished square wafers is expected to remain strong, and the supply gap may gradually narrow as new production lines come online in the next two to three years.