Mr. Alberto Pirati Profile

Alberto Pirati

Director EUV product management at ASML Netherlands BV

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Author

Publications (10)

Proceedings Article | 10 April 2024 Presentation + Paper

Driving exposure accuracy and cost-of-ownership on DUV immersion and dry-NXT scanner products

Wim de Boeij, Bart Smeets, Massimo Viola, Peter van Gils, Elliot Oti, Stefan Lichiardopol, Jelmer Kamminga, Mohamed El Kodadi, Aditya Deshpande, Alberto Pirati

Proceedings Volume 12953, 129530S (2024) https://doi.org/10.1117/12.3009961

KEYWORDS: Scanners, Distortion, Deep ultraviolet

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Proceedings Article | 28 April 2023 Presentation + Paper

Supporting future DRAM overlay and EPE roadmaps with the NXT:2100i

Bart Smeets, Paul Aben, Friso Klinkhamer, Jean Philippe van Damme, Bart Paarhuis, Raaja Ganapathy Subramanian, Mohamed El Kodadi, Stefan Lichiardopol, Alberto Pirati, Peter Vanoppen, Wim de Boeij

Proceedings Volume 12494, 124940R (2023) https://doi.org/10.1117/12.2657952

KEYWORDS: Reticles, Distortion, Semiconducting wafers, Overlay metrology, Optical alignment, Scanners, HVAC controls, Sensors, Reproducibility, Deep ultraviolet

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The foundations of leading edge DRAM manufacturing are built on accurate EUV lithography exposures in close synergy with cutting-edge immersion layers as well as advanced patterning schemes (e.g. self-aligned multiple patterning). Final device yield critically depends on the subsequent and accurate stacking of multiple layers with device features of precise width and edge placement. To support the ever-decreasing requirements for both the EUV as well as the DUV, (edge) placement accuracy, scanner enhancements are required on both platforms. In this paper we report on the improvements of the NXT:2100i immersion scanner to further reduce the (edge) placement errors within the die (intra-field) and across the full wafer (inter-field). The NXT:2100i incorporates a new projection optics with built-in distortion manipulator that extends the intra-field correction capability for both X and Y directions. The external overlay interface is extended with the distortion manipulator degrees of freedom to handle high spatial frequent distortion data of a to-be-matched scanner or high spatial frequent overlay fingerprints measured by after develop or after etch metrology. Thermal conditioning of the reticle is improved with a fast conditioned internal reticle library resulting in lower reticle-to-reticle temperature variation. Improved lens metrology (aberrations) and reticle align accuracy (alignment/overlay) is achieved with a better integrated image sensor. Improved alignment accuracy and reduced alignment process dependencies for wafer alignment are realized with 12-colors parallel measurements and by adding more alignment marks measurements at the wafer measure side without throughput impact. In concert with the hardware components, various software algorithms are updated, yielding improved inter- and intra-field overlay setup and improved reticle heating induced overlay. We will detail the specific module performance items as well as the system performance of the NXT:2100i scanner, both in reference (DRAM relevant overlay) to DUV as well as to EUV scanners.

Proceedings Article | 27 March 2017 Presentation + Paper

The future of EUV lithography: enabling Moore's Law in the next decade

Alberto Pirati, Jan van Schoot, Kars Troost, Rob van Ballegoij, Peter Krabbendam, Judon Stoeldraijer, Erik Loopstra, Jos Benschop, Jo Finders, Hans Meiling, Eelco van Setten, Niclas Mika, Jeannot Dredonx, Uwe Stamm, Bernhard Kneer, Bernd Thuering, Winfried Kaiser, Tilmann Heil, Sascha Migura

Proceedings Volume 10143, 101430G (2017) https://doi.org/10.1117/12.2261079

KEYWORDS: Extreme ultraviolet lithography, Scanners, Manufacturing, Lens design, Sensors, Optical proximity correction, Modeling, Photomasks, Semiconducting wafers, Extreme ultraviolet, Reflectivity, EUV optics, Lithography, Projection systems

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Proceedings Article | 18 March 2016 Paper

Advancements in predictive plasma formation modeling

Michael Purvis, Alexander Schafgans, Daniel J. Brown, Igor Fomenkov, Rob Rafac, Josh Brown, Yezheng Tao, Slava Rokitski, Mathew Abraham, Mike Vargas, Spencer Rich, Ted Taylor, David Brandt, Alberto Pirati, Aaron Fisher, Howard Scott, Alice Koniges, David Eder, Scott Wilks, Anthony Link, Steven Langer

Proceedings Volume 9776, 97760K (2016) https://doi.org/10.1117/12.2221991

KEYWORDS: Plasma, Optical simulations, Extreme ultraviolet, Extreme ultraviolet lithography, Pulsed laser operation, Carbon dioxide lasers, Performance modeling, Tin, Plasma physics, Optical lithography, Liquids, Laser development, Absorption, Monte Carlo methods, Computer simulations

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Proceedings Article | 18 March 2016 Paper

EUV lithography performance for manufacturing: status and outlook

Alberto Pirati, Rudy Peeters, Daniel Smith, Sjoerd Lok, Martijn van Noordenburg, Roderik van Es, Eric Verhoeven, Henk Meijer, Arthur Minnaert, Jan-Willem van der Horst, Hans Meiling, Joerg Mallmann, Christian Wagner, Judon Stoeldraijer, Geert Fisser, Jo Finders, Carmen Zoldesi, Uwe Stamm, Herman Boom, David Brandt, Daniel Brown, Igor Fomenkov, Michael Purvis

Proceedings Volume 9776, 97760A (2016) https://doi.org/10.1117/12.2220423

KEYWORDS: Extreme ultraviolet, Overlay metrology, Extreme ultraviolet lithography, Manufacturing, Pellicles, Logic devices, Semiconducting wafers, Reticles, Photomasks, Scanners, Fiber optic illuminators, Tin

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Proceedings Article | 16 March 2015 Paper

Performance optimization of MOPA pre-pulse LPP light source

Alexander Schafgans, Daniel Brown, Igor Fomenkov, Rick Sandstrom, Alex Ershov, Georgiy Vaschenko, Rob Rafac, Michael Purvis, Slava Rokitski, Yezheng Tao, Daniel Riggs, Wayne Dunstan, Matthew Graham, Nigel Farrar, David Brandt, Norbert Böwering, Alberto Pirati, Noreen Harned, Christian Wagner, Hans Meiling, Ron Kool

Proceedings Volume 9422, 94220B (2015) https://doi.org/10.1117/12.2087421

KEYWORDS: Extreme ultraviolet, Light sources, Pulsed laser operation, Extreme ultraviolet lithography, Plasma, Amplifiers, High power lasers, Tin, Laser energy, High volume manufacturing

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Proceedings Article | 13 March 2015 Paper

Performance overview and outlook of EUV lithography systems

Alberto Pirati, Rudy Peeters, Daniel Smith, Sjoerd Lok, Arthur W. Minnaert, Martijn van Noordenburg, Jörg Mallmann, Noreen Harned, Judon Stoeldraijer, Christian Wagner, Carmen Zoldesi, Eelco van Setten, Jo Finders, Koen de Peuter, Chris de Ruijter, Milos Popadic, Roger Huang, Martin Lin, Frank Chuang, Roderik van Es, Marcel Beckers, David Brandt, Nigel Farrar, Alex Schafgans, Daniel Brown, Herman Boom, Hans Meiling, Ron Kool

Proceedings Volume 9422, 94221P (2015) https://doi.org/10.1117/12.2085912

KEYWORDS: Semiconducting wafers, Pellicles, Extreme ultraviolet, Reticles, Extreme ultraviolet lithography, Imaging systems, Logic, Scanners, Manufacturing, Overlay metrology

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Proceedings Article | 17 April 2014 Paper

EUV lithography: NXE platform performance overview

Rudy Peeters, Sjoerd Lok, Joerg Mallman, Martijn van Noordenburg, Noreen Harned, Peter Kuerz, Martin Lowisch, Eelco van Setten, Guido Schiffelers, Alberto Pirati, Judon Stoeldraijer, David Brandt, Nigel Farrar, Igor Fomenkov, Herman Boom, Hans Meiling, Ron Kool

Proceedings Volume 9048, 90481J (2014) https://doi.org/10.1117/12.2046909

KEYWORDS: Semiconducting wafers, Reticles, Extreme ultraviolet lithography, Extreme ultraviolet, Logic, Imaging systems, Scanners, Optical proximity correction, Metrology, Photomasks

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Proceedings Article | 17 April 2014 Paper

Laser produced plasma light source development for HVM

Igor Fomenkov, David Brandt, Nigel Farrar, Bruno La Fontaine, David Myers, Daniel Brown, Alex Ershov, Norbert Böwering, Daniel Riggs, Robert Rafac, Silvia De Dea, Michael Purvis, Rudy Peeters, Hans Meiling, Noreen Harned, Daniel Smith, Robert Kazinczi, Alberto Pirati

Proceedings Volume 9048, 904835 (2014) https://doi.org/10.1117/12.2048195

KEYWORDS: Plasma, Extreme ultraviolet, Extreme ultraviolet lithography, Scanners, Tin, Light sources, Deep ultraviolet, Laser development, Hydrogen, Laser applications

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Proceedings Article | 18 March 2014 Paper

LPP EUV source readiness for NXE 3300B

David Brandt, Igor Fomenkov, Nigel Farrar, Bruno La Fontaine, David Myers, Daniel Brown, Alex Ershov, Norbert Böwering, Daniel Riggs, Robert Rafac, Silvia De Dea, Rudy Peeters, Hans Meiling, Noreen Harned, Daniel Smith, Alberto Pirati, Robert Kazinczi

Proceedings Volume 9048, 90480C (2014) https://doi.org/10.1117/12.2048184

KEYWORDS: Extreme ultraviolet, Extreme ultraviolet lithography, Plasma, Scanners, Control systems, Tin, Reflectivity, Mirrors, Pulsed laser operation, Laser scanners

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Showing 5 of 10 publications

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