ValueFinder analyst Lee Choong hun said, “As the AI semiconductor performance race extends to packaging, high-end FC-BGA is emerging as a supply bottleneck. In September, Samsung Electro-Mechanics decided on a total of KRW 6.78tn in package substrate capacity expansion in Sejong and Vietnam, and it is worth noting that this is demand-driven investment, with global customers funding part of the investment and mid- to long-term volumes already secured. Server FC-BGA is more than four times larger in area than standard PC FC-BGA and has 20 or more layers, so fewer units can be produced on the same equipment. Capex is therefore expected to continue, and Taesung, which supplies FC-BGA equipment, should benefit. With an order backlog of more than about six times last year’s revenue, the existing equipment business alone can support stable earnings growth. The portfolio is also expanding into high-value plating equipment, as seen in the letter of intent (LOI) received on September 28 from Simmtech for Via Fill VCP copper plating equipment for its SoCAMM mass-production line.”
He added, “For glass substrates, Taesung has developed equipment for multiple wet process steps, including cleaning, TGV etching, Cu via fill plating, developing, etching and stripping, which allows it to increase the number of tools supplied per customer line. Based on patents including non-contact conveyance technology, it has largely completed equipment specification talks with major substrate makers at home and abroad. Supply timing has slipped somewhat as customers‘ TGV process development and yield ramp-up have been delayed, but equipment supply is expected to follow in sequence once pilot lines and initial mass-production investments begin. In composite copper foil, it has achieved a 98% yield at a 1,400mm width using roll-to-roll (RTR) horizontal copper plating, has completed development of second-generation equipment with productivity of 10m per minute, and is in talks on volume supply with Korea’s three major battery makers and CATL. As a substantial portion of the new Cheonan plant‘s capacity is to be allocated to new-business lines, the earnings contribution from the new businesses is expected to grow gradually once initial orders are secured.”









