Bad news for Besi: ASML is getting into hybrid bonding - Bits&Chips

ASML's entry into hybrid bonding is not a product-line extension—it is a structural redefinition of the advanced packaging value chain, extending its lithography monopoly from pattern creation into stacking. Technically, hybrid bonding's core bottleneck is sub-10nm alignment and bump-free planarity—capabilities ASML has refined over two decades of EUV development. Besi's Dione platform, while leading in W2W and C2W bonding, operates at a fundamentally different precision ceiling. Once ASML ships, Besi's moat erodes within 18 months. Upstream CMP (AMAT) and metrology (KLA) gain from added process complexity; Besi, as the middle layer, gets squeezed from both ends. Competitively, TSMC and Intel will never tolerate one vendor controlling both lithography and bonding. Expect Besi to lock in OSAT-specific partnerships within six months or pivot toward 3D NAND bonding and co-packaged optics to sidestep head-on collision. AMAT and Tokyo Electron will likely wait for ASML's product to validate before committing capital. The 12-24 month tail effect: ASML's endorsement compresses hybrid bonding's adoption curve by at least a year. Besi's advanced-packaging revenue share (~40% of total) faces 20-30% erosion. The deeper signal: semiconductor equipment competition is shifting from single-tool to full-process platform logic, systematically compressing the survival space for mid-tier equipment makers.