Introduction
Taiwan Semiconductor Manufacturing Company (TSMC) has been in the spotlight again with developments at its Chiayi Phase 2 packaging plant. Recently, rumors suggested that TSMC might redirect equipment and resources from Chiayi to accelerate its U.S. expansion in Arizona. However, the company has clarified that Chiayi Phase 2 is still on track, highlighting TSMC’s ability to balance growth in both regions.
In this article, we’ll take a closer look at the progress of Chiayi Phase 2, TSMC’s Arizona expansion, and how the company is managing its global operations.
Key Takeaways
Chiayi Phase 2 remains on schedule with mass production expected in 2028.
TSMC’s Arizona expansion accelerates to meet AI and high-performance computing demand.
Advanced packaging technologies at Chiayi support Apple and other premium clients.
TSMC balances global operations while mitigating geopolitical and supply chain risks.
Taiwan and Arizona expansions together strengthen TSMC’s leadership in semiconductors.
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Why Chiayi Phase 2 Matters
The Chiayi Phase 2 project is part of TSMC’s advanced packaging campus, AP7, in Taiwan. This campus is being developed in eight phases, and Phase 2 is key for scaling SoIC (System on Integrated Chips) production to meet growing global demand, especially from high-end clients like Apple.
- Phase 1 (P1): Dedicated to multi-chip module production for Apple.
- Phases 2 & 3: Focused on ramping up SoIC production.
- Phase 4 and beyond: Large-scale CoPoS manufacturing.
According to local authorities, TSMC’s first Chiayi plant is proceeding smoothly, with equipment installation scheduled for Q3 2025. The Chiayi Phase 2 facility is expected to be completed by 2026, with mass production starting in 2028.
This makes Chiayi Phase 2 crucial for maintaining TSMC’s leadership in next-generation chip packaging.
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TSMC’s U.S. Expansion in Arizona
While maintaining its Taiwan operations, TSMC is aggressively expanding in the U.S. In March 2025, the company announced an additional $100 billion investment in Arizona, bringing its total U.S. investment to $165 billion. The expansion includes:
- Six wafer fabs
- Two advanced packaging plants (AP1 and AP2)
- One R&D center
CEO C.C. Wei emphasized that the U.S. expansion is designed to meet rising demand, especially in AI and high-performance computing. Construction is already underway for the third fab, featuring 2nm and A16 process technologies, and TSMC is fast-tracking production schedules by several quarters.
Despite these efforts in Arizona, TSMC assures that Chiayi Phase 2 and other Taiwan operations remain unaffected.
techovedas.com/tsmc-arizona-first-profit-u-s-subsidies-fuel-asia-chip-battle/
Balancing Taiwan and Arizona
Managing large-scale operations in two countries is no easy task. TSMC faces several challenges:
- Resource allocation: Equipment, talent, and logistics must be carefully coordinated.
- Skilled workforce: Both locations need highly trained engineers for advanced fabs and packaging.
- Geopolitical factors: Trade policies and export restrictions influence operational decisions.
- High market demand: AI, mobile, and automotive chips require fast scaling without quality compromise.
By keeping on schedule while expanding in Arizona, TSMC is showing it can manage complex global operations efficiently.
The Road Ahead for Chiayi Phase 2
TSMC expects Chiayi Phase 2 to be fully operational by 2026, supporting large-scale CoPoS production in Phase 4 and beyond. Mass production for the advanced packaging facilities is planned for 2028, ensuring a stable supply chain for high-end clients.
This will not only strengthen Taiwan’s semiconductor industry but also reinforce TSMC’s global leadership in advanced packaging technologies. Meanwhile, Arizona’s fabs and packaging plants will complement Taiwan’s operations, creating a resilient global manufacturing network.
/techovedas.com/tsmc-usa-vision-how-us-chip-subsidies-could-rewrite-global-semiconductor-power/
Conclusion
Rumors about a halt to Chiayi Phase 2 amid TSMC’s Arizona expansion have been officially denied. Taiwan remains a key hub for advanced packaging, while the U.S. expansion helps TSMC meet growing demand for next-generation chips.
By keeping on track, TSMC demonstrates that it can balance local and international priorities, maintain technological leadership, and continue its dominance in the global semiconductor market.
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