Producer
Carl Zeiss SMT GmbH
Semiconductor Manufacturing Technology division of Carl Zeiss AG; sole global supplier of EUV-grade optics/mirrors for ASML scanners. ASML owns 24.9% stake (€1B investment, 2016). 30+ year exclusive partnership. Produces collector mirrors, illuminator systems, and multi-mirror projection optics in Oberkochen, Germany — each mirror requiring months of precision fabrication at 50 picometer surface tolerance. ASML openly states 'without Zeiss, Veldhoven grinds to a halt.' Also makes optics for non-EUV ASML tools, space telescopes, and (via parent Carl Zeiss AG) consumer camera lenses, rifle scopes (Carl Zeiss Sports Optics), and surgical microscopes.
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The company's full revenue map, where this supply-chain role fits within their broader business.
EUV Optics (ASML Sole Supplier)
60%Medical & Surgical Optics
20%Defense & Sports Optics
12%Consumer & Scientific Optics
8%
Intelligence
What's known
Sourced claims about this company's role in supply chains, chokepoints, concentration, incidents, dual-use connections.
Did you know2024
The parent of Carl Zeiss SMT — Carl Zeiss AG — also manufactures rifle scopes and hunting optics (Carl Zeiss Sports Optics), surgical microscopes used in neurosurgery and ophthalmology, planetarium projectors, and consumer camera lenses. The same Oberkochen, Germany campus that grinds mirrors to 50 picometer tolerances for the world's most complex industrial machine also makes the optics in military sniper rifles. Carl Zeiss AG's combined 2024 revenue exceeded €10B across these entirely unrelated precision optics markets — semiconductor, defense, medical, and consumer — all from the same foundational expertise in precision glass polishing developed over 175 years.
Carl Zeiss SMT ↗Chokepoint2024
Carl Zeiss SMT (Oberkochen, Germany) is the sole global supplier of EUV-grade mirrors and optics — ASML has publicly stated 'without Zeiss, Veldhoven grinds to a halt.' No other company on Earth can manufacture EUV mirrors to the required 50 picometer surface tolerance (smaller than a silicon atom). The process — depositing 50+ bilayers of molybdenum-silicon at 2.7-7 nm thickness using proprietary DC magnetron sputtering — took 20+ years of R&D and cannot be reverse-engineered. ASML invested €1B for a 24.9% stake in Zeiss SMT in 2016 plus €760M in R&D and capex support, essentially to ensure this bottleneck remains functional. If Zeiss SMT's Oberkochen facility were disrupted, global EUV scanner production would stop with no restart path. 80% of all microchips made worldwide use Zeiss optics at some process step.
Asianometry ↗Origin2023
Carl Zeiss AG was founded in 1846 in Jena, Thuringia, by Carl Zeiss and Ernst Abbe -- the collaboration that established the science of precision optics. Ernst Abbe developed the mathematical foundations of optical design and the sine condition (Abbe sine condition) that governs all precision optical systems. Zeiss and Abbe also co-founded the Carl Zeiss Foundation (Stiftung), which owns Carl Zeiss AG and Schott AG (the specialty glass manufacturer) -- a unique ownership structure where a foundation, not shareholders, controls two of the world's most strategic precision manufacturing companies. The Carl Zeiss Foundation has no external shareholders; profits are reinvested in the companies and used for employee welfare. This ownership structure enabled Carl Zeiss SMT to invest 20+ years in EUV mirror technology development with no quarterly earnings pressure from public markets -- and to maintain the manufacturing expertise that allows it to grind mirrors to 50 picometer tolerances. A workers foundation that began in a Thuringian workshop in 1846 controls the optics without which global chip production would collapse.
Carl Zeiss AG ↗