Research institute imec will help ASML to prepare EUV lithography for the wider chip industry. EUV is a promising technology that uses extreme ultraviolet light (EUV) to make advanced microchips more efficiently. With this collaboration, imec, which has its headquarters in Leuven but an important subsidiary at the High Tech Campus Eindhoven, wants to confirm its leading position in research into the next generation of chip technology. And ASML can, therefore, continue to rely on imec’s essential expertise in the further realisation of their most advanced lithography systems.
Today, ASML and imec announced the next step in their extensive collaboration. Together, they will accelerate the adoption of EUV lithography for high-volume production, including the currently latest available equipment for EUV (0.33 Numerical Aperture, NA). Moreover, they will explore the potential of the next-generation high-NA EUV lithography to enable printing of even smaller nanoscale devices advancing semiconductor scaling towards the post-3-nanometer Logic node. To this end, they will establish a joint high-NA EUV research lab.
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Imec and ASML have been conducting joint research for almost thirty years. In 2014, they created a joint research centre, the Advanced Patterning Center, to optimize lithography technology for advanced CMOS integration and to prepare the ecosystem to support advance patterning requirements. Now, they bring this cooperation to the next stage with the installation of ASML’s most advanced and high-volume production dedicated EUV scanner (NXE:3400B) in imec’s cleanroom. Utilizing imec’s infrastructure and advanced technology platforms, imec and ASML researchers and partner companies can pro-actively analyze and solve technical challenges such as defects, reliability and yield, and as such accelerate the EUV technology’s industrialization.
With a 250W light source, ASML’s newest EUV system throughput will be more than 125 wafers per hour, one of the industry’s most important requirements for high-volume production. The NXE:3400B will also be equipped with the latest alignment and levelling sensors, to enable optimal process control at this high throughput. This will facilitate the overlay matching of the NXE:3400B to that of the latest immersion scanner, NXT:2000i, that will also be installed in imec’s cleanroom in 2019. In addition, ASML and imec will expand the metrology capability with new ASML YieldStar optical metrology and ASML-HMI Multi-electron beam metrology equipment, allowing more accurate and faster evaluation of nanoscale structures.
To continue on the leading edge of lithography development, a second component of the increasing collaboration is the foundation of a joint high-NA EUV research lab. In this lab, researchers from both organizations will experiment with the next generation of EUV lithography at higher NA. Systems with a higher NA project the EUV light onto the wafer under larger angles, improving resolution, and enabling printing of smaller features. More specifically, the new high-NA EUV system, EXE:5000, that will be installed in the joint research lab, will have an NA of 0.55 instead of 0.33 in current NXE:3400 EUV systems. Already now, the first joint scientific projects to facilitate the introduction of high-NA EUV, are ongoing. In the joint research lab, ASML and imec will perform research on the manufacturing of the most advanced nanoscale devices by high-NA EUV and assist the ecosystem of equipment and material suppliers to prepare for the introduction of high-NA EUV technology to the industry.
Luc Van den hove, President and CEO of imec: “The new EUV scanners and ASML metrology equipment will allow our industry partners to perform collaborative research on the most advanced and industry relevant lithography and metrology equipment. When it comes to lithography, ASML is undoubtedly the world leader. ASML and imec have a nearly 30-year long tradition of joint research, leading to breakthrough patterning research to advance the semiconductor industry roadmap.”
Martin van den Brink, President & Chief Technology Officer at ASML: “Access to the most advanced semiconductor lithography tools is vital for exploration and determining the paths to future generations of semiconductor devices and applications. Imec’s researchers and customers can be sure of the most up to date holistic lithography technology for many years to come. The semiconductor industry and consumers and businesses around the world will benefit from the fruits of imec’s work over the next decade, resulting in continuing improvements in microchip cost and performance.”
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