Molybdenum/Silicon 40-50 bilayer Bragg reflectors polished with ion-beam figuring to nanometer-fraction accuracy in ultra-high vacuum.
Molten tin drops (25μm diam) hit twice per cycle to generate 13.5nm EUV radiation while maintaining collector mirror debris mitigation.
Magnetic levitation planar motors accelerating at 10G in deep vacuum with real-time laser heterodyne interferometry.
Rohmund notes on Bloomberg TV that replicating the extreme precision optics—which took Carl Zeiss over two decades alongside thousands of specialized European sub-tier suppliers—represents an intricate physical barrier that capital investment alone cannot compress arbitrarily.
| Accelerator Class / Node | Lithography Exposure System | Mask Passes (Overlays) | Estimated Die Size | Est. Wafer Yield | Relative Compute / Watt |
|---|---|---|---|---|---|
| Nvidia Vera Rubin / Next-Gen (2nm/1.4nm) | High-NA EUV (0.55 NA) | Single Exposure (1x) | ~780 mm² (MCM) | 74% - 82% | 4.8x Baseline |
| Nvidia Blackwell B200 / Hopper (4nm/3nm) | Standard EUV (0.33 NA) | Single / Double Patterning | 814 mm² x 2 (Dual-Die) | 68% - 75% | 2.9x Baseline |
| Domestic SOTA AI (7nm DUV SAQP) | Immersion ArFi (193nm) | Self-Aligned Quad (4x) | ~920 mm² (Large Monolithic) | 26.5% - 32% | 1.0x Baseline (Thermal Cap) |
Formally structured technology assessment synthesized from Zeiss engineering disclosures, UBS supply chain models, and empirical DUV/EUV defectivity computations.