Samsung Electro-Mechanics Makes Record Investment In AI Chip Substrates

Samsung Electro-Mechanics is making history with its largest capital investment to date, aimed at meeting soaring demand from the AI server and high-performance computing sectors. The Korean company has unveiled plans to significantly boost production capacity for premium semiconductor substrates at its Sejong plant in South Korea and its Vietnamese manufacturing partner. These two sites will act as crucial nodes in the company's worldwide supply chain.

On September 28, Samsung Electro-Mechanics disclosed it will pour a total of 6.78 trillion won (around $4.98 billion) into expanding "Flip-Chip Ball Grid Array" (FCBGA) production facilities. This investment is split evenly between the Sejong plant and its Vietnamese subsidiary, with construction beginning this month and slated to conclude in May 2028. Full-scale mass production is set to kick off in September of the same year.

The Sejong plant's single-product capital expenditure marks the largest ever for Samsung Electro-Mechanics, accounting for 43.6% of the company's equity as of year-end. This massive expansion is being undertaken in close partnership with leading global tech firms. These companies are providing advance payments to help offset the capital outlay and secure medium-to-long term volume commitments, enabling Samsung Electro-Mechanics to minimize upfront costs while establishing a steady stream of orders post-plant operation.

Industry insiders believe a significant portion of the investment will be funded through customer advance payments, with contracts expected to last between three to five years. The FCBGA component plays a vital role in connecting high-performance semiconductors, such as AI accelerators, graphics processing units (GPUs), and central processing units (CPUs), to motherboards.

As AI semiconductors evolve toward integrating multiple chips into a single package, substrates have seen a surge in size and layer count, dramatically increasing manufacturing complexity and substrate value.

The semiconductor substrate market is currently grappling with severe supply constraints. Even with capacity expansions by global manufacturers, FCBGA lead times — the period from order placement to delivery — have ballooned to 48-56 weeks, a stark contrast to the typical 12-week window. This supplier-friendly market dynamic should bolster Samsung Electro-Mechanics' pricing prowess and pave the way for heightened profitability.

Hana Securities forecasts Samsung Electro-Mechanics' revenue for the third quarter of the year will reach 3.83 trillion won, a 33% increase year-over-year. Operating profit is projected to jump 154% to 661.5 billion won. This robust outlook is driven by price hikes for multi-layer ceramic capacitors (MLCCs) and package substrates. In particular, the potential for further earnings revisions has been noted, buoyed by strong pricing power with AI server customers.

Samsung Electro-Mechanics aims to position its Sejong plant as a key production hub for high-value-added products necessitating advanced manufacturing technology. This strategy will enable the company to proactively cater to demand not just from AI servers but also from high-growth sectors like high-performance computing (HPC) and automotive electronics.

Speaking on the matter, Samsung Electro-Mechanics President Jang Deok-hyun stressed that high-value-added semiconductor substrates are becoming a crucial determinant of semiconductor performance and supply chain robustness. "We will bolster the competitiveness of our FCBGA business in high-growth markets, including AI, servers, and automotive electronics, leveraging our unique substrate technology and dependable supply capabilities," Jang stated.