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ASML ships 100th TWINSCAN XT:19x0 series immersion system
Also ramping deliveries of new NXT immersion platform
Press release - Veldhoven, the Netherlands, February 22, 2010
ASML Holding NV (ASML) today announced the shipment of its 100th TWINSCAN XT:1900 series lithography system, capable of imaging industry-leading chip features as small as 38 nanometers.
The XT:19x0 series includes the XT:1900Gi and XT:1950Hi systems, both featuring the industry’s largest numerical aperture of 1.35. In total, ASML has shipped more than 160 TWINSCAN immersion systems, all capable of imaging sub-60 nm chip features.
TWINSCAN XT:19x0 series immersion systems are the enabling technology behind the most advanced Memory and Logic chips in volume production. Semiconductor manufacturers around the world, including 18 of the world’s top 20, use TWINSCAN immersion scanners to produce an estimated 350 million chips every month.
“Immersion lithography is now a mature technology,” said Jan Smits, senior vice president, TWINSCAN product group at ASML. “However, our immersion development continues in order to provide chipmakers with products that meet application-specific needs. Our XT systems provide cost-efficient, single-exposure manufacturing down to 38 nm, while our new TWINSCAN NXT platform provides the enhanced overlay and productivity performance required for double-patterning of critical features as small as 22 nm.”
As of December 31, 2009, ASML had shipped five TWINSCAN NXT systems and had another 17 TWINSCAN NXT systems in backlog, positioning this new class of immersion systems to become the preferred productivity system for DRAM and Logic chip manufacturing and future Flash nodes. Multiple customers will start volume production on TWINSCAN NXT in the second quarter of 2010.
ASML is the world's leading provider of lithography systems for the semiconductor industry, manufacturing complex machines that are critical to the production of integrated circuits or chips. Headquartered in Veldhoven, the Netherlands, ASML is traded on Euronext Amsterdam and NASDAQ under the symbol ASML. ASML has more than 6,500 employees (expressed in full-time equivalents), serving chip manufacturers in more than 60 locations in 15 countries.
About immersion lithography
Immersion lithography systems transfer patterns to wafers by projecting light through highly purified water between the lens and the wafer, enabling chipmakers to print smaller features with the same wavelength of light. ArF immersion (ArFi) technology has become the de facto standard for chip production at 55 nm and below. ASML was the first manufacturer to introduce immersion lithography, shipping its first TWINSCAN immersion system in 2004. It remains the worldwide leader in the field, which continues to grow rapidly.
About double patterning and TWINSCAN NXT:1950i
Double-patterning technology (DPT) describes a variety of lithography techniques that involve splitting a complex layer pattern into two (or more) simpler patterns, and exposing them separately to recreate the original layer pattern on the wafer. This allows features to be created on the wafer that are smaller than could be resolved by the scanner in a single exposure. The accuracy required to align the multiple patterns places much tighter critical dimension uniformity (CDU) and overlay than the single-exposure techniques used to date. In addition, multiple lithography steps per layer mean ultra-high throughput lithography systems are needed to maintain fab productivity.
For cost-effective double patterning to be adopted by semiconductor manufacturers, it requires a high-accuracy, high-productivity lithography scanner. ASML’s TWINSCAN NXT:1950i provides overlay below 3 nm, CDU of better than 1 nm and high throughput of 175 wafers per hour, necessary to make double-patterning processes cost-efficient.
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