Why AI Chips Are Turning Packaging Into a Power Play

Rising demand for AI hardware is tightening advanced packaging capacity and driving investment by groups such as ASE

5 Jan 2026

The once overlooked business of chip packaging is moving to the centre of the artificial intelligence boom, as surging demand for AI hardware strains a part of the semiconductor supply chain that was long treated as a back-end service.

Advanced packaging, which connects and integrates chips before they are shipped to customers, is emerging as a key constraint as AI processors move from design into mass production. Industry executives and analysts say capacity is tightening, forcing chipmakers and outsourced service providers to expand investment and deepen collaboration.

ASE, the world’s largest outsourced semiconductor assembly and test group, plans to lift capital spending by about $1bn in 2025. The investment will go into new equipment, upgraded facilities and expanded testing operations, as the company prepares for stronger demand from 2026 onwards.

The move highlights how packaging has become a strategic differentiator rather than a commodity service. Modern AI processors increasingly rely on “chiplet” designs, in which multiple smaller chips are combined in a single package. The approach improves performance and flexibility but makes packaging more complex and time sensitive. Delays at this stage can disrupt the wider semiconductor supply chain.

TrendForce estimates that ASE’s advanced packaging and testing revenue could reach about $1.6bn, driven largely by higher value work linked to AI accelerators and data centre processors. The company is also expanding final testing capacity, a step that has become more critical as next generation AI chips require more rigorous validation before shipment.

“Advanced packaging has become a key differentiator, not just a service,” a semiconductor analyst told TrendForce, adding that suppliers able to scale reliably stand to gain long term customer trust.

Looking ahead, ASE and its peers are investing in research to address technical constraints, including power loss and heat management inside advanced packages. These issues are increasingly important to data centre operators facing rising energy costs. Optical connections within chip packages are widely seen as a longer term solution, offering faster data transfer with lower power use.

Competition is intensifying. TSMC is expanding its own advanced packaging capacity while continuing to work with external partners. Amkor is broadening its regional footprint to improve supply chain resilience. At the same time, government incentives in the US and elsewhere are supporting new investment in semiconductor manufacturing and packaging.

As spending on high performance packaging rises through the end of the decade, the industry is adjusting to a new reality. Packaging is no longer the final step, but a critical battleground in the race to supply AI hardware.