W
Woo Young Choi
Researcher at Sogang University
Publications - 513
Citations - 7744
Woo Young Choi is an academic researcher from Sogang University. The author has contributed to research in topics: CMOS & Avalanche photodiode. The author has an hindex of 38, co-authored 495 publications receiving 6751 citations. Previous affiliations of Woo Young Choi include Seoul National University & University College of Engineering.
Papers
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Tunneling Field-Effect Transistors (TFETs) With Subthreshold Swing (SS) Less Than 60 mV/dec
TL;DR: In this paper, a 70-nm n-channel tunneling field effect transistor (TFET) with sub-threshold swing (SS) of 52.8 mV/dec at room temperature was demonstrated.
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Hetero-Gate-Dielectric Tunneling Field-Effect Transistors
Woo Young Choi,Woojun Lee +1 more
TL;DR: In this article, the authors proposed a hetero-gate-dielectric TFET, which enhances on-current, suppresses ambipolar behavior, and makes abrupt on-off transition by replacing the source-side gate insulator with a high-k material, which induces a local minimum of the conduction band edge at the tunneling junction.
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Demonstration of L-Shaped Tunnel Field-Effect Transistors
TL;DR: In this article, an L-shaped tunnel FET (TFET), which features band-to-band tunneling (BTBT) perpendicular to the channel direction, is experimentally demonstrated for the first time.
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Negative Capacitance in Organic/Ferroelectric Capacitor to Implement Steep Switching MOS Devices.
TL;DR: Negative capacitance, originating from the dynamics of the stored energy in a phase transition of a ferroelectric material, can achieve the step-up conversion of internal voltage in a metal-oxide-semiconductor device by taking advantage of negative capacitance in a MOS gate stack.
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All-optical signal up-conversion for radio-on-fiber applications using cross-gain modulation in semiconductor optical amplifiers
TL;DR: In this article, the authors presented a novel scheme of up-converting optical intermediate frequency (IF) signals with an optical local oscillator (LO) signal using cross-gain modulation in a semiconductor optical amplifier.