Dr. Toshiharu Nishiyama Profile

Dr. Toshiharu Nishiyama

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Publications (2)

Proceedings Article | 10 April 2024 Presentation + Paper

Small pitch overlay imaging metrology targets for tight OPO control

Nikhil Aditya Kumar Roy, Richard Housley, Suresh Kumar, Ranga Reddy, Dan Engelhard, Hao Wang, Atsushi Miyafuji, Toshiharu Nishiyama, Yoel Feler, Diana Shaphirov, Mark Ghinovker, Ido Ashuah, Yoav Grauer, Yonglei Li

Proceedings Volume 12955, 129551V (2024) https://doi.org/10.1117/12.3009769

KEYWORDS: Overlay metrology, Semiconducting wafers, Light sources and illumination, Metrology, Imaging metrology

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Proceedings Article | 22 February 2021 Presentation + Paper

Novel diffraction-based overlay metrology utilizing phase-based overlay for improved robustness

Masazumi Matsunobu, Toshiharu Nishiyama, Michio Inoue, Richard Housley, Cornel Bozdog, Justin Lim, Brian Watson, Jason Reece, Steve McCandless, Olger Zwier, Maurits van der Schaar, Murat Bozkurt, Masudur al Arif, Elliott McNamara, Pieter Kapel, Alan Khan, Simon Strom, Paul Turner, Ping Olson, Ewoud van West

Proceedings Volume 11611, 1161126 (2021) https://doi.org/10.1117/12.2584759

KEYWORDS: Overlay metrology, Diffraction, Diffraction gratings, Semiconducting wafers

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