Key Findings
Unimicron has officially begun mass production at its new ABF (Ajinomoto Build-up Film) substrate plant in Thailand, a critical move to satisfy the skyrocketing demand for high-performance substrates used in AI servers. This new facility is poised to alleviate the supply shortage of high-density, multi-layer ABF substrates, particularly those required for advanced AI accelerators integrating High Bandwidth Memory (HBM). The launch of this plant strategically diversifies Unimicron’s production footprint, mitigating geopolitical risks associated with concentrated manufacturing in Taiwan, while simultaneously enhancing its global supply capabilities. Unimicron projects a substantial increase in AI-related revenue by the latter half of 2026, positioning this new plant as a cornerstone of its growth strategy in the burgeoning AI market.
Technical and Manufacturing Details
ABF substrates are indispensable components for packaging high-performance semiconductors such as CPUs and GPUs, with AI/HPC (High-Performance Computing) applications demanding increasingly complex multi-layer structures and finer line widths. Unimicron’s Thai plant incorporates the latest manufacturing technologies and advanced automation systems to achieve high-yield production of high-quality ABF substrates. This enables the company to meet the stringent specifications of next-generation AI processors that power data centers and cloud infrastructures. Specific technological advancements include uniform circuit pattern formation techniques for high-layer count substrates, precise processing of low-dielectric loss materials, and structural designs optimized for enhanced thermal management.
Background and Industry Context
In recent years, the strengthening of semiconductor supply chains and geographical diversification has become a global imperative, particularly concerning the concentration of advanced semiconductor manufacturing capabilities in Taiwan. Unimicron’s investment in Thailand aligns with this global trend, offering crucial supply chain stability for its customers. The rapid evolution of AI has led to an explosive demand for ABF substrates, driving manufacturers worldwide to accelerate capacity expansion. The AI server market is projected for sustained high growth, making the stable supply of high-performance packaging substrates vital for the overall development of the AI industry.
Strategic Significance and Outlook
With the operational launch of its new Thai plant, Unimicron is set to further solidify its presence in the AI market and expand its customer base. The company remains committed to aggressive investment in R&D for next-generation ABF substrates, focusing on miniaturization, high-frequency compatibility, and low-thermal expansion technologies. This commitment aims to support the continuous evolution of AI semiconductor technology from the packaging perspective. By doing so, Unimicron expects to maintain its competitive edge in the global packaging substrate market, pursue sustainable growth, and establish a flexible production system capable of meeting diverse customer needs.
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