Sumitomo Bakelite to Double Packaging Materials Production in China Amid AI Demand Surge

Sumitomo Bakelite, Japan's largest semiconductor materials manufacturer, has announced an expansion of production capacity at its facilities in Suzhou (Jiangsu province, eastern China) and Singapore. The announcement, dated October 11, 2026, reflects growing demand for advanced packaging materials driven by the global artificial intelligence boom. This marks the company's second production expansion announcement in China in under four months, underscoring the region's strategic importance to the global semiconductor supply chain.

Specific materials and scale of the expansion

Sumitomo Bakelite will add production lines for two key packaging materials. The first is MUF materials (mould underfill) — specialized polymers that protect the space beneath the chip die in microchips, preventing moisture ingress, mechanical damage, and thermal deformation. The second is compression-molded pellets, polymer components that are converted under pressure and heat into packaging compounds with the required electrical, thermal, and mechanical properties.

The expansion will roughly double MUF material production capacity and triple output of compression-molded pellets compared to current levels. The expansion covers Suzhou in Jiangsu province and Singapore — two of Asia's key semiconductor hubs. The specific investment amount has not been disclosed.

Why packaging materials are critical to the semiconductor industry

This production expansion highlights the growing strategic importance of advanced packaging materials in the semiconductor supply chain. Packaging materials protect sensitive electronic components from moisture and mechanical damage, ensure efficient heat dissipation from active chips, and guarantee device longevity. Without high-quality, specialized packaging materials, it would be impossible to achieve the reliability, performance, and durability required of modern semiconductors — especially for high-performance AI applications.

Artificial intelligence as the main demand driver

The second wave of expansion in Suzhou within less than four months is a direct consequence of the explosive growth in semiconductor demand driven by AI development. AI chips require increasingly sophisticated packaging architectures for maximum performance, efficient heat dissipation, and high reliability. Semiconductor manufacturers now face a situation where current production capacity is insufficient to meet demand.

Sumitomo Bakelite's investments in expanding its Suzhou and Singapore operations pursue a strategic goal: securing a position in a fast-growing market, staying geographically close to Asia's largest semiconductor manufacturing hubs, and ensuring reliable supply channels for customers. With demand for specialized packaging materials at a historic high, Sumitomo Bakelite's position as a leading supplier reflects the realities of today's semiconductor market, driven by the wave of innovation in artificial intelligence.