High-K Ta2O5 polyoxide deposited on polycrystalline with NH3 plasma treatment

Chyuan Haur Kao, K. S. Chen, J. S. Chiu, C. S. Chen, T. C. Chan, W. S. Luo, Y. T. Chung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The high-k Ta2O5 in our study is used to apply as gate dielectric in polyoxide and low-temperture polycrystalline silicon thin-film transistor (LTPS-TFT) for performance improvements. Therefore, we employ the NH3-plasma treatment to improve the electrical characteristics of the high-k Ta2O5 polyoxide dielectric such as higher breakdown voltage and lower leakage current. It's seen that the nitrogen can pile up at the high-k Ta2O5 dielectric and polysilicon interface to form strong Si-N bondings from the SIMS and XPS analysis.

Original languageEnglish
Title of host publicationECS Transactions - Silicon-on-Insulator Technology and Devices 14 - 215th Meeting of the Electrochemical Society
PublisherElectrochemical Society Inc.
Pages335-340
Number of pages6
Edition4
ISBN (Electronic)9781607680628
ISBN (Print)9781566777124
DOIs
StatePublished - 2009
Event14th International Symposium on Silicon-On-Insulator Technology and Devices - 215th Meeting of the Electrochemical Society - San Francisco, CA, United States
Duration: 24 05 200929 05 2009

Publication series

NameECS Transactions
Number4
Volume19
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference14th International Symposium on Silicon-On-Insulator Technology and Devices - 215th Meeting of the Electrochemical Society
Country/TerritoryUnited States
CitySan Francisco, CA
Period24/05/0929/05/09

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