P49 OASIS Archives - Semiconductor Engineering

This article explores the rapid adoption of curvilinear masks in semiconductor manufacturing and the challenges they present. As chip technologies advance toward smaller nodes, traditional rectangular... Read original →

The rapid adoption of curvilinear masks is triggering a deep-stack reconfiguration across semiconductor manufacturing. At 3nm and below, rectangular fracturing fails to meet the fidelity demands of inverse lithography technology (ILT) and curvilinear OPC, forcing EDA vendors, mask shops, and foundries to co-evolve their data pipelines. The emergence of AI-accelerated fracture engines directly mitigates computational bottlenecks in handling MULTIGON structures during mask data preparation (MDP), but simultaneously raises entry barriers: smaller mask houses lacking capital for next-gen MDP toolchains risk obsolescence, while TSMC (Taiwan, China) and Samsung deepen their technological moats. Geopolitically, U.S. export controls on advanced lithography may extend to mask-making infrastructure, accelerating regionalized supply chains. Over the next 12–24 months, curvilinear masks will migrate from EUV-leading-edge to mature nodes, making AI-native design tools standard and consolidating global mask capacity among fracture-engine-capable players.