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SEMATECH starts extension work on immersion lithography |
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Sep 09, 2005 at 11:23 AM |
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SEMATECH has received a key tool for exploring the extension
of immersion lithography to produce advanced semiconductors at the 45nm
half-pitch lithography generation and beyond, according to the R&D centre
on September 1st.
The tool, an interference immersion exposure
system from Amphibian Systems, will be placed in the Immersion Technology
Center (iTC), which focuses on extending immersion lithography beyond pure
water-based approaches.
"The Amphibian is the latest in a series of highly
engineered tools that will help to explore the ultimate limits of optical
lithography," said Kevin Kemp, SEMATECH's lithography director. "It also puts
Texas in the forefront of one of our industry's most promising R&D
initiatives."
The Amphibian system is designed to study immersion
lithography with novel fluids and resists at up to 1.5 NA. The tool consists of
a 2mm exposure field size, a full range of polarization controls, and the
ability to image both line patterns and contact features. A fluid delivery
system allows for the use of water or alternative fluids, with the ability to
change fluids rapidly between wafers. The system is fully enclosed in an
ultra-clean environment.
The Amphibian equipment arrived in August and will be
available for use by SEMATECH and researchers from its member companies and
suppliers in September. SEMATECH played a key part in the early evaluation
efforts of immersion lithography which has paved the way for further research
that is required to meet cost effective lithography techniques ahead of the
possible adoption of EUV lithography at the 32nm node.
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