ACM Research ships first 310mm panel-level electroplating tool to Asia
ACM Research (NASDAQ: ACMR) has shipped its first 310 × 310 mm Ultra ECP ap-p panel-level horizontal electroplating production tool to a customer in Asia outside mainland China. The Fremont-based semiconductor equipment maker said the delivery marks a significant step in its advanced packaging strategy and broadens its global customer base beyond its established Chinese accounts.
The shipment follows ACM's dispatch last year of a larger 515 × 510 mm research and development tool, and demonstrates the company's ability to move from R&D prototypes to volume-production systems within a relatively short development cycle. ACM president and chief executive David Wang said the company believes the 310 × 310 mm system is the first panel-level horizontal electroplating production tool at that substrate size to reach a customer, though the claim was not independently verified in the release.
What the tool does
The Ultra ECP ap-p system supports copper, nickel, tin-silver and gold plating processes. Its copper plating chamber incorporates a high-speed paddle designed specifically for tall copper pillar applications, and is said to achieve good within-die uniformity for 300-micron copper pillars at high plating rates. The system uses a four-sided sealing dry-contact chuck for reliability and includes in-cell rinse functionality to limit chemical cross-contamination between plating cells.
The defining technical characteristic is ACM's patent-pending horizontal electroplating architecture, which synchronises chuck rotation with a rotating rectangular electric field to improve deposition uniformity. Plating thickness uniformity is a known bottleneck in panel-level packaging: because panels are larger than conventional round wafers, maintaining consistent copper deposition across the full substrate area is considerably harder, and yield losses from non-uniform plating can be economically significant at production scale.
Market context
Panel-level packaging has gained momentum as chipmakers seek to integrate more silicon into a single package without the cost constraints of leading-edge wafer nodes. Substrates larger than a standard 300 mm wafer allow more dies per panel and potentially lower per-chip packaging costs, which is why the approach is attracting investment from outsourced semiconductor assembly and test (OSAT) providers across Taiwan, South Korea and Southeast Asia.
ACM competes in the electroplating equipment segment against established players including Lam Research and Tokyo Electron, as well as specialist tool vendors. Its horizontal plating approach is differentiated from conventional vertical systems, which tend to exhibit greater thickness variation across larger panel formats. The company's ability to land a production tool with a non-Chinese Asian customer is also notable given ongoing US export-control scrutiny of semiconductor equipment shipments to mainland China; ACM has been navigating that regulatory environment while actively diversifying its customer geography.
Regulatory and standards read-across
The advanced packaging sector sits at the intersection of several active policy areas. US Bureau of Industry and Security export controls updated in late 2023 and extended in 2024 tightened restrictions on certain semiconductor manufacturing equipment destined for Chinese entities, increasing pressure on suppliers such as ACM to grow revenue elsewhere. Panel-level packaging tools at the production stage are not currently subject to the same restrictions as leading-edge lithography equipment, but the regulatory perimeter has been widening and equipment makers are monitoring BIS guidance closely.
For the customer side, advanced packaging for AI accelerators and high-bandwidth memory stacks is increasingly treated as critical supply-chain infrastructure, attracting government interest in Europe, Japan, South Korea and the United States under various semiconductor subsidy programmes.
ACM said it will continue advancing its multi-panel-size platform and growing its global customer base. The next milestones investors and industry watchers will look for include named customer wins, yield and throughput data from the production ramp, and any indication of orders for the larger 515 × 510 mm format at production scale.