A novel high-k cobalt-titanium oxide (CoTiO3) was formed by directly oxidizing sputtered Co/Ti film. Al/CoTiO3/Si3N4/Si capacitor structure was fabricated and measured. The effective dielectric constant with buffered layer for CoTiO3 gate dielectric can reach as high as 40 while depicting excellent electrical properties at the same time. This novel metal oxide thus appears to be a promising high-k gate dielectric for future ultralarge scale integrated devices. (C) 2000 The Electrochemical Society. S1099-0062(00)03-095-9. All rights reserved.
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IBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, SwitzerlandIBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland
Locquet, Jean-Pierre
Marchiori, Chiara
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IBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, SwitzerlandIBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland
Marchiori, Chiara
Sousa, Maryline
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IBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, SwitzerlandIBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland
Sousa, Maryline
Fompeyrine, Jean
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IBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, SwitzerlandIBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland
Fompeyrine, Jean
Seo, Jin Won
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Institute Physics of Complex Matters, EPFL, 1015 Lausanne, Switzerland
Advanced Materials and Metrology, MosBeam Foundation, PSE, 1015 Lausanne, SwitzerlandIBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland