K
Kazuaki Nakajima
Researcher at Toshiba
Publications - 55
Citations - 830
Kazuaki Nakajima is an academic researcher from Toshiba. The author has contributed to research in topics: Metal gate & Gate oxide. The author has an hindex of 16, co-authored 55 publications receiving 824 citations.
Papers
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Journal ArticleDOI
Improvement of threshold voltage deviation in damascene metal gate transistors
Atsushi Yagishita,Tomohiro Saito,Kazuaki Nakajima,Seiji Inumiya,K. Matsuo,Tsuyoshi Shibata,Y. Tsunashima,K. Suguro,Tsunetoshi Arikado +8 more
TL;DR: In this paper, the work function deviation (crystal orientation deviation) was found to cause the threshold voltage deviation (/spl Delta/V/sub th/) in the damascene metal gate transistors.
Patent
Semiconductor device wiring or electrode
TL;DR: In this paper, the gate electrode is formed of polycrystalline silicon film, a silicon nitride film having a nitrogen surface density of lens than 8×10 14 cm -2, and a tungsten film.
Journal ArticleDOI
High performance damascene metal gate MOSFETs for 0.1 /spl mu/m regime
Atsushi Yagishita,Tomohiro Saito,Kazuaki Nakajima,Seiji Inumiya,Y. Akasaka,Yoshio Ozawa,Katsuhiko Hieda,Y. Tsunashima,K. Suguro,Tsunetoshi Arikado,Katsuya Okumura +10 more
TL;DR: In this article, the Damascene gate process was developed in order to apply metal gates and high dielectric constant gate insulators to MOSFET fabrication and minimize plasma damage to gate insulator.
Proceedings ArticleDOI
High performance metal gate MOSFETs fabricated by CMP for 0.1 /spl mu/m regime
Atsushi Yagishita,Tomohiro Saito,Kazuaki Nakajima,Seiji Inumiya,Y. Akasaka,Yoshio Ozawa,G. Minamihaba,H. Yano,Katsuhiko Hieda,K. Suguro,Katsuya Okumura +10 more
TL;DR: Damascene gate process as mentioned in this paper uses CMP (Chemical Mechanical Polishing) to form the gate structure and produces high performance metal gate transistors with pure SiO/sub 2/ or Ta/sub 1/O/Sub 5/ as gate insulators with very uniform and highly reliable electrical characteristics.
Patent
Semiconductor device and manufacturing method therefor
TL;DR: In this paper, an oxide film is formed on a metal film formed on the main surface of a semiconductor substrate by exposing the metal film to the oxidizing gas, and a protection film is created on the surface of the oxide film reduced in the reducing step.