Characteristics of double-gate a-IGZO TFT

Xin He, Xiang Xiao, Wei Deng, Longyan Wang, Ling Wang, Shipeng Chi, Yang Shao, Mansun Chan, Shengdong Zhang

Research output: Chapter in Book/Conference Proceeding/ReportConference Paper published in a bookpeer-review

Abstract

A double-gate (DG) a-IGZO TFT with separate bottom-gate and top-gate is fabricated and electrically characterized. It is shown that the double-gate device has a steeper sub-threshold swing, a larger carrier mobility, and a driving current 2.4 times larger than the conventional single-gate device. Due to the lowered vertical electric field across the channel region, a negligible Vth shift is observed for the double-gate device under negative gate bias stress. Moreover, the dynamic threshold voltage effect has also been demonstrated due to the separate two gates in the TFT.

Original languageEnglish
Title of host publicationProceedings - 2014 IEEE 12th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014
EditorsJia Zhou, Ting-Ao Tang
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479932962
DOIs
Publication statusPublished - 23 Jan 2014
Event2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014 - Guilin, China
Duration: 28 Oct 201431 Oct 2014

Publication series

NameProceedings - 2014 IEEE 12th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014

Conference

Conference2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014
Country/TerritoryChina
CityGuilin
Period28/10/1431/10/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

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