Ajinomoto’s ABF Film Business Surges with 95%+ Market Share, Driven by Exploding AI Chip Demand

Let’s Data Science Japan

Overview

Ajinomoto, a dominant player with over 95% global market share for its ABF (Ajinomoto Build-up Film) insulating film crucial for high-performance semiconductors, is experiencing significant profit growth in its semiconductor film business. This surge is directly attributable to the escalating demand for AI chips. The trend underscores how the benefits of AI infrastructure spending extend beyond major tech and chipmakers, profoundly impacting specialized material suppliers globally.

In Depth

Background and Evolution of Semiconductor Packaging Technology

Modern high-performance semiconductors, especially AI processors and GPUs, require extremely high-density integration and complex packaging technologies to process vast amounts of data at high speeds. In such advanced packaging, insulating materials are indispensable for forming multi-layer interconnections, and their performance dictates the overall reliability and speed of the semiconductor device. Traditional insulating materials struggled to meet the demands for miniaturization and high-speed signaling. Against this backdrop, Ajinomoto’s “ABF (Ajinomoto Build-up Film)” has established itself as a standard material for advanced semiconductor packaging due to its superior properties.

AI Demand Fuels Growth of Ajinomoto’s ABF Film

Ajinomoto’s ABF film holds an overwhelming global market share of over 95% as an insulating layer for high-performance semiconductor packages. This thin film combines excellent electrical insulation, thermal properties, dimensional stability, and fine processability, making it ideal for the build-up process of multi-layer substrate interconnections. In recent years, with the evolution of generative AI and other advancements, the demand for AI chips has exploded, leading to a corresponding rapid expansion in ABF film demand.

• AI Chip Performance Requirements: AI chips, to maximize computational power, incorporate more transistors and operate at high frequencies, exacerbating issues of heat generation and signal delay within the package. ABF film provides excellent heat dissipation and low dielectric properties to address these challenges.
• Indispensability for High-Density Packaging: High-density packaging using technologies like chiplets and HBM (High Bandwidth Memory) requires multiple chips to be placed in close proximity and interconnected over short distances. ABF film is essential as a reliable insulating layer supporting these fine wiring structures.
• Contribution to Profit Growth: The increase in AI chip demand has led to a rise in both sales volume and average selling price for ABF film, resulting in substantial profit growth for Ajinomoto’s semiconductor film business. This demonstrates how technical superiority aligned with a major market trend.

Technical Significance and Future Outlook

Ajinomoto’s ABF film plays a critically important role as a hidden foundational technology supporting the evolution of semiconductor technology in the AI era. This trend clearly illustrates that investments in AI infrastructure are bringing widespread economic benefits not only to end products and major chipmakers but also to the specialized material suppliers behind them. Further advancements in AI technology and the associated increase in semiconductor packaging complexity and density are inevitable, suggesting a sustained increase in demand for high-performance insulating materials like ABF film. Ajinomoto is expected to focus on further improving material properties, developing new manufacturing processes, and strengthening its supply chain to maintain this advantageous position. This case exemplifies how Japanese technological prowess continues to hold a crucial position in the intensifying global semiconductor materials market.