Thermal leakage improvement by using a high-work-function Ni electrode in high-κ TiHfO metal-insulator-metal capacitors

K. C. Chiang; C. C. Huang; H. C. Pan; C. N. Hsiao; J. W. Lin; I. J. Hsieh; C. H. Cheng; C. P. Chou; A. Chin; H. L. Hwang; S. P. McAlister

doi:10.1149/1.2422874

Thermal leakage improvement by using a high-work-function Ni electrode in high-κ TiHfO metal-insulator-metal capacitors

K. C. Chiang^*, C. C. Huang, H. C. Pan, C. N. Hsiao, J. W. Lin, I. J. Hsieh, C. H. Cheng, C. P. Chou, A. Chin, H. L. Hwang, S. P. McAlister

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

An unavoidable drawback when using high- κ dielectrics in capacitors is the small bandgap and the related reduction in the band-offset, which results in a large leakage current at elevated temperatures. We report improvements in the thermal leakage current by using Ni as a high-work-function top electrode for high- κ TiHfO capacitors. This avoids sacrificing the overall κ value by using a multilayer or laminate structure and results in better voltage linearity, which is important for analog/radio frequency integrated circuits.

Original language	English
Pages (from-to)	G54-G57
Journal	Journal of the Electrochemical Society
Volume	154
Issue number	3
DOIs	https://doi.org/10.1149/1.2422874
Publication status	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/1.2422874

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Chiang, K. C., Huang, C. C., Pan, H. C., Hsiao, C. N., Lin, J. W., Hsieh, I. J., Cheng, C. H., Chou, C. P., Chin, A., Hwang, H. L., & McAlister, S. P. (2007). Thermal leakage improvement by using a high-work-function Ni electrode in high-κ TiHfO metal-insulator-metal capacitors. Journal of the Electrochemical Society, 154(3), G54-G57. https://doi.org/10.1149/1.2422874

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abstract = "An unavoidable drawback when using high- κ dielectrics in capacitors is the small bandgap and the related reduction in the band-offset, which results in a large leakage current at elevated temperatures. We report improvements in the thermal leakage current by using Ni as a high-work-function top electrode for high- κ TiHfO capacitors. This avoids sacrificing the overall κ value by using a multilayer or laminate structure and results in better voltage linearity, which is important for analog/radio frequency integrated circuits.",

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doi = "10.1149/1.2422874",

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AU - Chiang, K. C.

AU - Huang, C. C.

AU - Pan, H. C.

AU - Hsiao, C. N.

AU - Lin, J. W.

AU - Hsieh, I. J.

AU - Cheng, C. H.

AU - Chou, C. P.

AU - Chin, A.

AU - Hwang, H. L.

AU - McAlister, S. P.

PY - 2007

Y1 - 2007

N2 - An unavoidable drawback when using high- κ dielectrics in capacitors is the small bandgap and the related reduction in the band-offset, which results in a large leakage current at elevated temperatures. We report improvements in the thermal leakage current by using Ni as a high-work-function top electrode for high- κ TiHfO capacitors. This avoids sacrificing the overall κ value by using a multilayer or laminate structure and results in better voltage linearity, which is important for analog/radio frequency integrated circuits.

AB - An unavoidable drawback when using high- κ dielectrics in capacitors is the small bandgap and the related reduction in the band-offset, which results in a large leakage current at elevated temperatures. We report improvements in the thermal leakage current by using Ni as a high-work-function top electrode for high- κ TiHfO capacitors. This avoids sacrificing the overall κ value by using a multilayer or laminate structure and results in better voltage linearity, which is important for analog/radio frequency integrated circuits.

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Thermal leakage improvement by using a high-work-function Ni electrode in high-κ TiHfO metal-insulator-metal capacitors

Abstract

ASJC Scopus subject areas

UN SDGs

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