The impact of TiN barrier on the NBTI in an advanced high-k metal-gate p-channel MOSFET

D. C. Huang, E. Ray Hsieh, J. Gong, C. F. Huang, Steve S. Chung

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

This study investigates the bias temperature instability in high-k/metal-gate pMOSFETs with a TiN barrier layer sandwiched between the metal gate electrode and HfO2 dielectric and for reliability improvement of such devices. The experimental results clearly demonstrated that the diffusion mechanism of oxygen and nitrogen resulting from the post metallization treatment was the root cause of bias temperature instabilities in the p-channel MOSFETs. However, the device NBTI reliability is dependent on the nitrogen diffusion from the TiN layer, which degrades the SiO2/Si interfacial layer quality. Results show that by increasing the thickness of TiN barrier layer, the driving current will make worse the NBTI in p-MOSFET. Therefore, optimization needs to be considered for TiN as a barrier to improve the device reliabilities.

原文???core.languages.en_GB???
主出版物標題24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1-4
頁數4
ISBN(電子)9781538617793
DOIs
出版狀態已出版 - 5 10月 2017
事件24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017 - Chengdu, China
持續時間: 4 7月 20177 7月 2017

出版系列

名字Proceedings of the International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA
2017-July

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???event.eventtypes.event.conference???24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017
國家/地區China
城市Chengdu
期間4/07/177/07/17

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