- Siliconware Precision Industries (SPIL), a major semiconductor packaging and testing company and subsidiary of ASE Technology Holding, has commenced construction of a NT$100 billion (US$3.1 billion) advanced chip-packaging plant in Douliou, Yunlin, Taiwan. The facility is planned to provide advanced CoWoS (Chip-on-Wafer-on-Substrate) packaging from 2028, expanding capacity for AI semiconductors while creating 1,300 jobs at launch and 2,200 jobs at full capacity.
- CoWoS has become increasingly important as AI processors demand greater computing performance and memory bandwidth. The technology integrates multiple semiconductor dies, such as AI processors and high-bandwidth memory, into a highly interconnected package, helping increase data-transfer capability between components.
- SPIL operates within one of the semiconductor industry’s largest packaging and testing ecosystems. As a major subsidiary of ASE Technology Holding, the world’s largest semiconductor packaging and testing services provider, SPIL’s expansion adds capacity to an ecosystem benefiting from strong demand for advanced packaging.
- The investment reflects a broader shift in semiconductor capital toward advanced back-end manufacturing. As chip architectures become increasingly complex, packaging, testing, materials, equipment, automation and yield-management capabilities are becoming strategic components of semiconductor production.
- Yunlin is emerging as an important advanced-packaging cluster for Taiwan. SPIL began operations at its first Yunlin plant in Huwei in September 2025, while the new Douliou facility adds another major capacity expansion to the region.
- Production efficiency and yield will be central to the economics of the new facility. Taiwan’s Ministry of Economic Affairs said the project is expected to strengthen SPIL’s advanced-packaging capability while improving production efficiency and yield as increasingly sophisticated AI devices move toward high-volume manufacturing.
- SPIL’s expansion extends well beyond a single factory. The company has invested about NT$200 billion in facilities across Taichung, Changhua, Yunlin, Hsinchu and Tainan over the past two years, creating approximately 8,000 jobs across those investments.
- The expansion is also supported by a significant new capital-raising program. SPIL plans to raise NT$16.19 billion through 810 million new shares for raw-material purchases and capacity expansion, with ASE Technology set to subscribe to all of the new shares.
- The significance of SPIL’s investment extends far beyond additional factory capacity. As advanced packaging becomes increasingly intertwined with AI product launches, customer commitments and revenue timing, companies positioned across equipment, materials, engineering, manufacturing and specialized semiconductor services are gaining access to an expanding layer of value within the AI supply chain.
- Advanced-packaging expansion is also reshaping the semiconductor talent landscape. As facilities move from construction and equipment installation into qualification, yield ramp and high-volume production, demand is likely to extend across process engineering, equipment engineering, automation, quality, manufacturing operations and senior technical leadership.
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