Wavy channel Thin Film Transistor for area efficient, high performance and low power applications

Amir Hanna, Galo T. Sevilla, Mohamed T. Ghoneim, Muhammad Mustafa Hussain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report a new Thin Film Transistor (TFT) architecture that allows expansion of the device width using wavy (continuous without separation) fin features - termed as wavy channel (WC) architecture. This architecture allows expansion of transistor width in a direction perpendicular to the substrate, thus not consuming extra chip area, achieving area efficiency. The devices have shown for a 13% increase in the device width resulting in a maximum 2.4x increase in 'ON' current value of the WCTFT, when compared to planar devices consuming the same chip area, while using atomic layer deposition based zinc oxide (ZnO) as the channel material. The WCTFT devices also maintain similar 'OFF' current value, similar to 100 pA, when compared to planar devices, thus not compromising on power consumption for performance which usually happens with larger width devices. This work offers a pragmatic opportunity to use WCTFTs as backplane circuitry for large-area high-resolution display applications without any limitation any TFT materials.
Original languageEnglish (US)
Title of host publication2014 10th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781479949946
DOIs
StatePublished - Jun 2014

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