DEVOURED
ASML Slides on Report of China Starting DUV Tool Production
ASML's market position is under pressure as an unnamed Shanghai-based firm reportedly begins mass production of immersion DUV lithography tools.
What: The Chinese firm aims to produce five DUV machines this year and 20 next year. While these tools are less sophisticated than ASML's extreme ultraviolet (EUV) systems, they represent a significant step in China's move toward domestic chipmaking independence.
Why it matters: Domestic production of lithography tools suggests China is successfully circumventing Western export controls by developing local alternatives for mid-range semiconductor manufacturing.
Decoder
- DUV (Deep Ultraviolet) lithography: A chipmaking process using light with 193nm wavelengths to print patterns onto silicon wafers; it is the industry standard for most chips, whereas EUV is for the most advanced nodes.
- Immersion lithography: A DUV technique where a liquid (usually water) is placed between the lens and the wafer to increase the numerical aperture and resolution.
Original article
A Shanghai-based company has started mass producing immersion deep ultraviolet lithography tools. The unnamed firm aims to make about five DUV machines this year and is targeting about 20 next year. Production is still at an early stage. DUV machines are less advanced than ASML's sophisticated extreme ultraviolet lithography tools. ASML has been banned from exporting its tools to China.
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