A look at advanced chip packaging, now more reliant on TSMC and its partners in Taiwan than ever, and the efforts to address this bottleneck in the US
A silicon wafer reflecting Subramanian Iyer, a specialist at the University of California, Los Angeles, in a technology called advanced chip packaging.
Context & Ripple Effects
Advanced packaging has shifted from a back-end manufacturing afterthought to a performance-critical part of AI-chip production. Related coverage describes TSMC's CoWoS capacity expanding rapidly, with Nvidia reserving most of it, concentrating a key constraint in Taiwan.
The US has been trying to rebuild this layer of the supply chain alongside fabrication: Phoenix investments by TSMC, Intel, and Amkor show the scale and execution difficulty of creating a domestic chip hub. Earlier coverage also cautioned that localization alone does not automatically create resilience.
First-order effects
- US efforts to address the packaging bottleneck put TSMC's Taiwan-centered packaging network—and its partners—at the center of AI-chip supply availability, not just leading-edge wafer production.
- Domestic packaging projects gain strategic importance for US chip producers and policymakers because access to advanced packaging can limit the output of chips even when fabrication capacity is available.
Second-order effects
- AI-chip customers competing for scarce advanced packaging capacity face continued dependence on TSMC allocation; Nvidia's reported reservation of most CoWoS capacity illustrates how capacity access can become a competitive advantage.
- Intel, Amkor, and other participants in the Phoenix buildout are pressed to prove they can provide an integrated US alternative, while TSMC's expansion retains leverage over the pace at which that alternative can emerge.
Third-order effects
- If packaging remains concentrated around Taiwan, semiconductor supply-chain resilience will increasingly be determined by specialized assembly and integration capacity rather than by the geographic location of fabs alone.
- The likely structural response is a more vertically coordinated regional supply chain—linking fabs, packaging, materials, and design customers—but the related coverage indicates that building it outside Asia is operationally difficult and may not fully remove concentration risk.
The trend: Advanced packaging is becoming a strategic choke point in the AI semiconductor supply chain, driving a shift from fab-centric industrial policy toward end-to-end manufacturing ecosystems.