Key Findings
Semiconductor material prices are broadly increasing, driven by a complex interplay of factors: rising demand for advanced processes and packaging, escalating energy and raw material costs stemming from conflicts in the Middle East, and China’s tightened export controls on strategic minerals, all disrupting the supply of high-purity materials. Notably, Sumitomo Bakelite, a core supplier for CoWoS (Chip-on-Wafer-on-Substrate) and HBM (High-Bandwidth Memory) packaging and a leader in the global epoxy molding compound market, has increased its prices. Since 2026, major manufacturers, including Sumitomo Bakelite and Mitsubishi Chemical, have raised prices for packaging materials in response to soaring demand for AI chips, creating widespread implications across the entire semiconductor supply chain.
Technical Details
Advanced packaging technologies like CoWoS and HBM are essential for integrating multiple chiplets at high density, enabling high-bandwidth and low-latency data transfer. These packaging solutions require high-performance packaging materials that can mitigate stress between materials with different coefficients of thermal expansion, ensuring excellent electrical and mechanical reliability. Epoxy molding compounds play a crucial role in protecting semiconductor chips from the external environment, aiding in heat dissipation, and providing electrical insulation. Specifically, CoWoS and HBM packaging demand materials with special properties due to the need for finer pitch wire bonding and high thermal cycling resistance. The increase in material prices directly impacts the manufacturing cost of the final AI chips and can be passed on to product prices.
Background & Context
The rapid expansion of AI computing infrastructure has led to an exponential increase in demand for high-performance semiconductor chips, creating bottlenecks in advanced packaging materials. Geopolitical tensions and rising resource nationalism further threaten the stability of specific raw material supplies, increasing price volatility risks. High-purity materials, indispensable for semiconductor manufacturing, are supplied by a limited number of companies that dominate the market, making them particularly sensitive to these factors. Japanese chemical manufacturers have established global leadership in these advanced material sectors, and their pricing decisions have significant repercussions on the global supply chain. This price increase will prompt semiconductor manufacturers to re-evaluate material sourcing strategies, diversify suppliers, or consider in-house material development.
Strategic Significance & Outlook
The rising cost of advanced semiconductor materials is a primary driver of increased overall AI chip manufacturing costs, which is likely to affect the prices of final products. While short-term price stabilization is anticipated to be challenging, in the medium to long term, the supply situation may improve as material manufacturers increase production capacity or as alternative materials are developed. However, as demand for high-performance AI chips is expected to continue growing, the stable supply of packaging materials will remain a critical challenge for the semiconductor industry. Enhanced transparency and robust risk management across the entire supply chain will become increasingly necessary moving forward.
Source: https://www.dintek-semi.com/prices-of-critical-semiconductor-materials-are-rising-across-the-board/
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